Incident at Regina, SK


1997-05-08: NWT 664 was on final for Runway 31 at approximately 6 miles advising that they had flight control problems and were cancelling IFR, requesting a left 360 degree turn to rejoin final. When the a/c rejoined final approach, the pilot advised that the problem had been fixed. The a/c landed safely at 2142Z. Conditions were VFR, there was no damage, no operational impact. Visibility was 15 miles, ceiling 1600 broken, in class D and E airspace. UPDATE After the occurrence, the crew stated that they got a trailing edge flap asymmetry indication during flap selection on the first approach. The left flap was reading 25 degrees and the right flap was reading 15 degrees. No roll was encountered and as per the a/c checklist, they moved the flap handle to the smallest indicated position (15 degrees). Both flaps came up together and the crew reselected 25 degrees of flap and got a normal indication. On the ground, maintenance could not duplicate the problem and will be monitoring for similar problems in the future.


CADORS Number 1997C0247
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 1997-05-07 - 21:35
Day or Night?
Fatalities 0
Aerodrome ID
Aerodrome Name
Geographic Location Saskatchewan, Canada, North America, Prairie and Northern Region, Regina, SK
TSB Occurrence Number
TSB Class of Investigation
AOR Number
Reported By NAV CANADA
Categories System/component failure or malfunction [non-powerplant]

Aircraft Details (1 aircraft)

Type Aeroplane
 Silhouette image of Aeroplane
Canadian Registration FNVT | Flightaware (Registration) | Flightaware (Tracking) | AvHerald
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Operator Commercial
Make  Silhouette image of BOEING
Model 737 248C
Year Built 1975
Engine Type Turbo fan
Engine Make
Engine Model
Gear Type Land
Private No
Amateur Built No
Flight Number NWT 664
Flight Rule
CARS Subpart
Phase of Flight Approach
Damage Unknown
Fatalities 0
Injuries 0
Events Flight control systems (ailerons, rudder, rotors, flaps, main, tail)

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