April 5, 2020

Incident at 150NM E ST. JOHN'S INTL NL (CYYT)

At 1320Z, a Cougar Helicopters Inc. Sikorsky S-92A (C-GKNR/CHI51) from St. Johns, NL (CYYT) declared an emergency with a "PAN PAN" due to failure of anti-icing for engine number 1 and requested to return to CYYT. The flight was outside controlled airspace and was provided a clearance when in controlled airspace as requested. No assistance was required and pilot was returning as a precautionary measure. Prior to entering controlled airspace, the flight descended to remain clear of cloud and icing conditions. The flight cancelled its IFR clearance and returned to CYYT VFR. The fight landed at 1427Z. No impact to operations.
UPDATE TSB Report #A20A0013: C-GKNR, a Sikorski S92 operated by Cougar Helicopters was on an IFR flight from St. John’s International, NL (CYYT) to the Hebron Oil Platform (CHBR) at 7000 feet ASL. The aircraft was 150 NM East of CYYT when the INLET #1-A-ICE FAIL illuminated along with the Master Caution light. The crew referred to the Emergency Check List (ECL) and reset the INLET #1 A-ICE. The INLET #1-A-ICE remained in a failed state. Due to the light icing experienced in cloud and a PIREP from a company aircraft inbound from the Hebron area the crew elected to return to CYYT. The crew contacted Gander ACC, declared a PAN-PAN, and requested clearance to CYYT at 2400 feet ASL. The aircraft remained in cloud and icing so the crew cancelled IFR and descended to 900 feet ASL where they were clear of cloud and icing. The aircraft conducted a VFR approach and landed safely in CYYT. Maintenance determined that the #1 Engine Inlet required replacement.

November 25, 2019

Incident at 4717N / 05057W

A Cougar Helicopters Inc. Sikorsky S-92A (C-GQCH/CHI51) from St. Johns, NL (CYYT) to St. Johns, NL (CYYT) declared "PAN PAN" due to a failure of one hydraulic system and requested to return CYYT. Aircraft was cleared as requested and landed without incident. No traffic or impact to operations.

Incident at 4714N / 05057W

A Cougar Helicopters Inc. Sikorsky S-29A (C-GQCH/CHI51) from St. Johns, NL (CYYT) to destination unknown lost hydraulic system one. The aircraft declared PAN PAN and diverted back to point of departure. The aircraft landed safely at 1315Z. No impact on operations.
Update TSB Report #A19A0090: C-GQCH, a Sikorsky S-92A helicopter operated by Cougar Helicopters, was conducting flight CHI51 from St. John’s Intl (CYYT), NL to the Hebron oil platform. During cruise, the crew noted the #1 hydraulic pressure indicate high and then drop to zero. The crew declared a PAN PAN, and returned to CYYT with no further incident. Maintenance found that the heat exchanger had ruptured causing fluid to leak.

December 24, 2018

Incident at ST. JOHN'S INTL NL (CYYT)

A Jazz de Havilland DHC-8-402 (C-GGDU/JZA8990) from Halifax/Stanfield Intl, NS (CYHZ) to St. Johns Intl, NL (CYYT) landed Runway 29 and rolled out past the intersection for Runway 34. A Cougar Helicopters Inc. Sikorsky S-92A (C-GSCH/CHI51) from KTE56 to St. Johns Intl, NL (CYYT) was cleared to land Runway 34. JZA8990 was issued exit instructions to backtrack Runway 29 and hold short Runway 34 and read back clearance. JZA8990 was observed taxiing past the hold short line for Runway 34 approximately 1000 feet back from Runway 34. The aircraft was instructed to stop by the tower and the aircraft stopped 200 feet short of Runway 34. CHI51 landed and there was no impact on operations.

September 21, 2017

Incident at 180NM ST. JOHN'S INTL NL (CYYT)

At 1100Z, the pilot of a Cougar Helicopters Sikorsky S-92A (C-GVCH/CHI151) on a flight from St. John's, NL (CYYT) requested to return to CYYT due to an instrument problem. The flight was approximately 180NM SE of CYYT. The aircraft landed CYYT at 1239Z, no further issues.

July 5, 2017

Incident at 75NM ST. JOHN'S INTL NL (CYYT)

At 1801Z, a Cougar Helicopters Sikorsky S-92A (C-GKNR/CHI51) on a flight from St. John's, NL (CYYT) requested to return to CYYT due to an instrumentation issue. The flight did not declare an emergency and did not require assistance. The flight landed without incident at 1847Z.

September 1, 2015

Incident at 4723N 5117W

UPDATE: TSB#A15A0063: The Cougar Helicopters Sikorsky S-92A (C-GFCH) was en route from St. John's, NL (CYYT) to the Grand Banks oil rig platform. After passing through heavy rain, the crew noted a dim illumination of the Master Fire Warning light. The number 2 engine Fire Light illuminated in the same manner. The lights became brighter and the aural ENG FIRE ALERT began. All indications were intermittent, however the crew decided to turn towards shore and call PAN PAN PAN for priority. Cougar Rescue 61 was launched, joined the returning flight and confirmed there was no visual indication of fire. All lights extinguished once the power was reduced to idle and the fire detection system functioned normally. The passengers were briefed continually on the status of the aircraft throughout the flight. Maintenance replaced the fire detector and cable assembly. Troubleshooting is ongoing.
At 1227Z, approximately N4723/W5117, a Cougar Helicopters Sikorsky S-92A (C-GFCH/ CHI51) from St John', NL (CYYT) to an Oil Rig (GB53) transmitted PAN PAN PAN and declared an emergency. The flight advised they had a fire indicator in engine #2. The flight suspected an erroneous indicator. The flight requested to divert and was cleared direct CYYT. The flight landed without incident at 1259Z. Joint Rescue Coordination Centre (JRCC) Halifax advised.
UPDATE: JRCC Halifax SARSUM Report#[S2015-00540]: (465400N 0514367W - 60 ESE CYYT). Gander Centre reported that a Sikorsky helicopter (Cougar 51) was 60 NM ESE of St. John's with 12 people on board with an indication of engine fire, and they were returning to St. John's airport. A 413 Squadron Hercules aircraft (R343) and a 103 Squadron Cormorant helicopter (R905) were tasked to assist. Both resources were stood down when the aircraft, under escort with another Cougar helicopter, landed safely at the airport. No further assistance required.

November 8, 2013

Incident at ST. JOHN'S INTL NL (CYYT)

UPDATE: TSB REPORT#A13A0115: The Cougar Helicopters leased S92A helicopter (USA Registration N901CN), was in cruise flight from the Henry Goodrich oil platform to St. John's airport. About 110nm east of St. John's the crew received a MGB Pump #1 fail indication. The crew noted there was no change in oil pressure and there were no other indications which indicated the pump had failed. The crew suspected a faulty indication and continued to St. John's and landed without further incident. Company maintenance determined the vacuum switch was unserviceable. The switch was replaced and a test flight carried out. The aircraft was returned to service.
Cougar company dispatch called at 1542Z to advise that a Cougar Helicopters Sikorsky S-92A (CHI51) enroute from Henry Goodrich rig to St. John's, NL (CYYT) had a "main gear box pump" indication. The flight then cancelled IFR and continued to CYYT at 500ft. No emergency declared and no assistance required. Landed at 1627Z.

May 17, 2010

Incident at ST. JOHN'S INTL NL (CYYT)

CHI51, Sikorsky S92A, returned to St. John?s (CYYT) due to a minor technical problem. No assistance was required.

March 29, 2010

Incident at ST. JOHN'S INTL NL (CYYT)

CHI51, Sikorsky S92, enroute from St. John?s (CYYT) to the Glomar Oil Rig, requested to return to St. John?s due to de-icing equipment difficulties. The aircraft was cleared as requested and landed at 10:35Z without further incident. No assistance was required. Nil TSB.

June 17, 2009

Incident at ST. JOHN'S INTL NL (CYYT)

At 14:27Z, CHI51, Sikorsky S92A, reported that his "engine start system" was unserviceable and requested clearance to return to St. John?s (CYYT). No emergency was declared and no assistance was required. The pilot cancelled IFR 23 miles southeast of St. John?s and landed without incident at 14:34Z. TSB Evaluating.

September 24, 2008

Incident at ST. JOHN'S INTL NL (CYYT)

UPDATE Maintenance & Manufacturing: Cougar maintenance investigated the incident and found no engine contributing factors or obvious fire indication system problems. Due to the reliability history of the engine flame detectors, both detectors were replaced for precautionary reasons. There have been no reports of engine fire detection problems since the detector replacement and the situation is being monitored by management.
While inbound to St. John?s (CYYT) (70 nautical miles east of St. John's), a Canadian registered Sikorsky S92A, enroute from the Glomar Oil Rig, declared PAN PAN PAN due to a fire indication in the number-two engine. Crash Fire Rescue (CFR) was requested at destination and was standing by. The aircraft landed without further incident at 15:06Z.

February 11, 2008

Incident at ST. JOHN'S INTL NL (CYYT)

UPDATE TSB: The aircraft powered down and then back up. The malfunction did not reappear.
CHI51, Sikorsky S92A, enroute from St. John?s (CYYT) to the Glomar Oil Rig, departed St. John?s at 11:48Z. At 12:04, approximately 38 nautical miles southeast of St. John?s, the flight requested clearance to return to St. John?s. Pilot advised reason for return as "Computer Failure". No emergency declared and no assistance was required. The flight landed safely at 12:27Z. Nil TSB.

June 29, 2007

Incident at ST. JOHN'S INTL NL (CYYT) (Weather - visibility, Overshoot/missed approach)

Missed approaches for the following aircraft: ACA627 1/8 visibility; ACA185 1/8 visibility; SPR901 1/8 visibility; SPR410 1/8 visibility; ACA1197 1/8 visibility; WJA899 1/8 visibility ACA649 0 visibility; CHI51 1/8 visibility; N830CA 1/8 visibility; SPR2959 1/8 visibility; N7022Y 1/8 visibility; CHI21 1/8 visibility; N122MP 1/8 visibility; LAL8301 1/8 visibility; C-FGWT 1/8 visibility; C-GMMA 1/8 visibility; SPR2969 1/8 visibility; BTA2357 1/8 visibility; CHI31 1/8 visibility; LAL8302. Nil TSB.

November 10, 2006

Incident at ST. JOHN'S INTL NL (CYYT)

UPDATE TSB: The electrical problem was caused by a Transformer Rectifier Unit (TRU). Nil TSB.
CHI51, AS332, departed St. John?s (CYYT) and 8O miles east requested, and was cleared to return to St. John?s due to a minor electrical problem. No emergency was declared and the aircraft landed without incident at 13:01Z. TSB evaluating.

September 22, 2006

Incident at ST. JOHN'S INTL NL (CYYT)

CHI51, Sikorsky S61, was enroute from St. John?s (CYYT) to the Glomar Grand Banks. The aircraft departed St. John?s at 14:10Z. The aircraft returned and landed safely at 14:12 with an "Electrical" problem. No emergency was declared and no assistance was required. Nil TSB.

March 1, 2006

Incident at ST. JOHN'S INTL NL (CYYT)

CH151, Aerospatiale AS 332, enroute from St. John?s (CYYT) to the Hibernia Oil Platforms departed St. John's at 19:25Z. When the aircraft was approximately 60 miles east, the crew advised of an electrical problem and requested to return to St. John's for landing. The aircraft was cleared as requested and landed without further incident at 21:00Z. No emergency was declared. Nil TSB.

August 19, 2003

Incident at ST. JOHN'S INTL NL (CYYT)

TSB Update - 2003-08-20 - A03A0098:The Cougar Helicopters Sikorsky S61, registration FTIG, was en route to an oil rig platform on the Grand Banks of Newfoundland. At approximately 20 nautical miles south of St. John's International airport the crew declared an emergency due to hydraulic problems. They isolated the aux hydraulic system, returned to St. John's and landed uneventfully at 1029 NDT while AFF crews stood by. Maintenance inspected the hydraulic system and found a leak in the aux filter bowl area. The leak source was traced to an o-ring that had been damaged. The hydraulic system had undergone maintenance the previous night which included servicing the aux filter. During reassembly a new o-ring and Teflon backing ring were installed. A moto-gen was completed which provides hydraulic system pressure for the purpose of leak a check; however, no leaks were found. It is suspected that the o-ring was damaged during re-assembly after the filter was reinstalled but the leak did not begin until after the aircraft was started for the incident flight.
CHI51 a Cougar S61 Helicopter was 20 miles south of St. John's bound for the Glomar Rig when it decared an emergency due to a hydraulic problem. The helicopter returned to St. John's, requested CFR on standby, and landed at 1259Z without further incident.

June 29, 1999

Incident at 50 NM East St. John's NF

CHI51 AS32 enroute from St. John's to Hibernia Oil Rig developed an unspecified Mechanical Problem and returned St. John's. No assistance required. Aircraft landed safely 1835z. Nil TSB