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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Flight crew of B757 has trailing edge flap asymmetry indicated on status message. Crew slowed the aircraft, descended, conferred with maintenance and elected to divert.
| Attributes | |
| ACN | 387456 |
| Time | |
| Date | 199712 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : bgd |
| State Reference | TX |
| Altitude | msl bound lower : 33000 msl bound upper : 37000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zab |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 14000 flight time type : 800 |
| ASRS Report | 387456 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 225 flight time total : 10000 flight time type : 1400 |
| ASRS Report | 387253 |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : declared emergency other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
Status message trailing edge flap asymmetry and trailing edge light illuminated in cruise. Crew slowed aircraft and descended to FL330. Discussed situation with dispatcher and company maintenance control. Elected to divert to msp because of freezing rain at original destination, dtw. Declared emergency, briefed crew and passenger. Performed cockpit operating manual procedure and landed runway 30L msp without incident. Transmitting unit associated with flap warning indicating system had been replaced that morning and apparently was faulty.
Original NASA ASRS Text
Title: FLC OF B757 HAS TRAILING EDGE FLAP ASYMMETRY INDICATED ON STATUS MESSAGE. CREW SLOWED THE ACFT, DSNDED, CONFERRED WITH MAINT AND ELECTED TO DIVERT.
Narrative: STATUS MESSAGE TRAILING EDGE FLAP ASYMMETRY AND TRAILING EDGE LIGHT ILLUMINATED IN CRUISE. CREW SLOWED ACFT AND DSNDED TO FL330. DISCUSSED SIT WITH DISPATCHER AND COMPANY MAINT CTL. ELECTED TO DIVERT TO MSP BECAUSE OF FREEZING RAIN AT ORIGINAL DEST, DTW. DECLARED EMER, BRIEFED CREW AND PAX. PERFORMED COCKPIT OPERATING MANUAL PROC AND LANDED RWY 30L MSP WITHOUT INCIDENT. XMITTING UNIT ASSOCIATED WITH FLAP WARNING INDICATING SYS HAD BEEN REPLACED THAT MORNING AND APPARENTLY WAS FAULTY.
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.