ASN Wikibase Occurrence # 211455
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Date: | Tuesday 16 March 1999 |
Time: | 14:00 |
Type: | Boeing 747-238B |
Owner/operator: | Air Pacific |
Registration: | DQ-FJI |
MSN: | 22145/410 |
Year of manufacture: | 1979 |
Fatalities: | Fatalities: 0 / Occupants: |
Aircraft damage: | Substantial |
Location: | Sydney-Kingsford Smith International Airport, NSW (SYD/YSSY) -
Australia
|
Phase: | Initial climb |
Nature: | Passenger - Scheduled |
Departure airport: | Sydney-Kingsford Smith International Airport, NSW (SYD/YSSY) |
Destination airport: | NFFN |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:Following flap retraction shortly after the Boeing 747 departed Sydney, the crew reported a flap disagreement indication. The flaps could not be extended and were stuck in the up position. The aircraft returned to Sydney where the crew carried out a flapless landing.
An inspection revealed that the right inboard fore-flap carriage stop had failed. This resulted in extensive damage to the fore flap, mid flap, and overload failure of the right flap drive torque tubes.
Specialist examination found that the fore-flap carriage stop failed due to stress corrosion cracking. The cracking initiated at the bolt hole surface. The manufacturer's instructions require that the bolt should be installed with wet sealant, however inspection indicated that the sealant did not cover the centre portion of the bolt, potentially allowing moisture to enter.
Sources:
https://www.atsb.gov.au/publications/investigation_reports/1999/aair/aair199901111/ http://www.aussieairliners.org/b-747i/fiji/dq-fji.html
History of this aircraft
Other occurrences involving this aircraft Revision history:
Date/time | Contributor | Updates |
26-May-2018 07:45 |
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