 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B767 on approach at OM experienced flaps stuck at 20 units. Recycled flaps. No help. Landed aircraft at 20 units. Cause unknown.
| Attributes | |
| ACN | 546484 |
| Time | |
| Date | 200205 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 1500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : zzz.tracon tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 20000 flight time type : 998 |
| ASRS Report | 546484 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : eicas warning other flight crewa other flight crewb |
| Resolutory Action | flight crew : overcame equipment problem none taken : detected after the fact other |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
Approaching OM runway 28R, first officer (PF) was at flaps 20 degrees and was slowing through 170 KIAS and ask for flaps 25 degrees. Flaps did not move and trailing edge flap disagreement light and trailing edge flap disagreement EICAS came on. Recycled flaps to 20 degrees, lights remained on. Went back to 25 degrees and back to 20 degrees when nothing changed. First officer (PF) stated no rolling moment at all and all other indications normal. We agreed since a headwind, light weight and an 8000 ft runway, it would be the best course of action to continue and land. First officer turned off the flap GPWS override and I reset the target speed for flaps 20 degrees (7 KTS greater than flaps 30 degrees). First officer also requested automatic brakes 2. Landing was normal and first officer turned off at taxiway A6. When we got to the gate, we did our shutdown flow without touching the flaps. The light and EICAS went off before the mechanics were there and the flaps worked normally with no light from 0 through 30.
Original NASA ASRS Text
Title: A B767 ON APCH AT OM EXPERIENCED FLAPS STUCK AT 20 UNITS. RECYCLED FLAPS. NO HELP. LANDED ACFT AT 20 UNITS. CAUSE UNKNOWN.
Narrative: APCHING OM RWY 28R, FO (PF) WAS AT FLAPS 20 DEGS AND WAS SLOWING THROUGH 170 KIAS AND ASK FOR FLAPS 25 DEGS. FLAPS DID NOT MOVE AND TRAILING EDGE FLAP DISAGREEMENT LIGHT AND TRAILING EDGE FLAP DISAGREEMENT EICAS CAME ON. RECYCLED FLAPS TO 20 DEGS, LIGHTS REMAINED ON. WENT BACK TO 25 DEGS AND BACK TO 20 DEGS WHEN NOTHING CHANGED. FO (PF) STATED NO ROLLING MOMENT AT ALL AND ALL OTHER INDICATIONS NORMAL. WE AGREED SINCE A HEADWIND, LIGHT WT AND AN 8000 FT RWY, IT WOULD BE THE BEST COURSE OF ACTION TO CONTINUE AND LAND. FO TURNED OFF THE FLAP GPWS OVERRIDE AND I RESET THE TARGET SPD FOR FLAPS 20 DEGS (7 KTS GREATER THAN FLAPS 30 DEGS). FO ALSO REQUESTED AUTO BRAKES 2. LNDG WAS NORMAL AND FO TURNED OFF AT TXWY A6. WHEN WE GOT TO THE GATE, WE DID OUR SHUTDOWN FLOW WITHOUT TOUCHING THE FLAPS. THE LIGHT AND EICAS WENT OFF BEFORE THE MECHS WERE THERE AND THE FLAPS WORKED NORMALLY WITH NO LIGHT FROM 0 THROUGH 30.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.