ASN Wikibase Occurrence # 383962
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Date: | Monday 5 July 1982 |
Time: | 13:59 LT |
Type: | Boeing 727-233 |
Owner/operator: | Air Canada |
Registration: | CGAAA |
MSN: | 20932/1069 |
Year of manufacture: | 1974 |
Total airframe hrs: | 18816 hours |
Engine model: | P & W JT8D-15 |
Fatalities: | Fatalities: 0 / Occupants: 74 |
Aircraft damage: | Minor |
Category: | Serious incident |
Location: | Flushing, NY -
United States of America
|
Phase: | En route |
Nature: | Unknown |
Departure airport: | Flushing, NY (KLGA) |
Destination airport: | (CYUL) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:DURING INITIAL CLIMB, THE AMBER LEADING EDGE FLAT LIGHT REMAINED LIT AFTER FLAP RETRACTION FROM 5 DEGREES TO 2 DEGREES. MODERATE AILERON AND RUDDER INPUTS WERE REQUIRED TO MAINTAIN WINGS LEVEL FLIGHT. AFTER CYCLING THE FLAPS FROM 5 BACK TO 2 DEGREES, THE SAME CONDITION EXISTED AND THE SECOND OFFICER CONFIRMED THAT THE NO. 7 SLAT WAS NOT RETRACTING. THE FLAPS WERE THEN EXTENDED TO 15 DEGREES, ELIMINATING THE ROLLING TENDENCY, AND THE FLIGHT RETURNED TO LAGUARDIA. SUBSEQUENT INSPECTION REVEALED THAT AN INBOARD SLAT TRACK ROLLER SUPPORT BOLT FOR THE NO. 7 SLAT HAD FAILED. THE ROLLER WAS FOUND LODGED BETWEEN THE INBOARD TRACK AND WING STRUCTURE. THE ROLLER WAS SEIZED WITH SEVERAL BEARINGS MISSING. LITTLE LUBRICATION WAS EVIDENT. THE BOLT FRACTURED THROUGH A LUBRICATION HOLE THAT THE ROLLER MOUNTS OVER. BOLT FRACTURE FACES EXHIBITED STRIATIONS AND CUPPING. TOTAL TIME ON BOLT AND ROLLER WAS 18,815 HOURS.
Probable Cause:
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | NYC82IA137 |
Status: | Investigation completed |
Duration: | 1 year |
Download report: | Final report |
|
Sources:
NTSB NYC82IA137
Location
Revision history:
Date/time | Contributor | Updates |
03-Apr-2024 06:14 |
ASN Update Bot |
Added |
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