Incident at TORONTO / LESTER B. PEARSON INTL ON (CYYZ)

Summary

1997-05-15: F.A.A. Operations Centre advised at 2118Z that AAL460 inbound to Toronto (LBPIA) had radio problems and lost communication with the Tower. The pilot squawked 7600 for radio failure and executed a missed approach. The pilot established contact with the Tower again, then lost contact. The pilot elected to squawk 7700 to make sure the Tower was aware they were having problems. The aircraft came around in VFR conditions and landed without incident at 2000Z. A report is being issued due to potential media attention relative to squawk 7700. Ops. impact -- unknown. Supplemental information (from T.S.B. Initial Notification #A97O0070): Inbound to Toronto, the Boeing 757 experienced intermittent difficulties with communications. The crew squawked 7600 and subsequently 7700 before landing without further incident at 1555EDT. Maintenance replaced both the captain's and the co-pilot's microphone relays (P/N BACR 13 CD2) and returned the aircraft to service. There has not been a recurrence of the problem.

Details


CADORS Number 1997O0213
Occurrence Type Incident
Reported By Federal Aviation Administration (FAA), NAV CANADA
Occurred At 1997-05-05 - 20:00
Day or Night?
Fatalities 0
Injuries
Aerodrome ID CYYZ
Aerodrome Name TORONTO / LESTER B. PEARSON INTL ON (CYYZ)
Geographic Location Ontario, Canada, North America, Ontario Region, Toronto International (LBPIA)
TSB Occurrence Number
TSB Class of Investigation
AOR Number
Reported By Federal Aviation Administration (FAA), NAV CANADA
Categories System/component failure or malfunction [non-powerplant],Other
Events



Aircraft Details (1 aircraft)

Type Aeroplane
 Silhouette image of Aeroplane
Canadian Registration
Foreign Registration
Country of Registration
Occurrence Type Incident
Owner AMERICAN AIRLINES
Operator AMERICAN AIRLINES
Make  Silhouette image of BOEING
BOEING
Model 757
Year Built
Engine Type
Engine Make
Engine Model
Gear Type
Private No
Amateur Built No
Flight Number AAL460
Flight Rule
CARS Subpart
Phase of Flight Descent
Damage Unknown
Fatalities 0
Injuries 0
Events Aircraft navigation/communication equipment,Declared emergency/priority

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