# SDR ASAA2021051634835

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 16, 2021
- Submitted: May 18, 2021
- Operation: Air carrier
- Aircraft: [N607AS](https://openairdocs.org/aircraft/N607AS), registered now
- Make and model: Boeing 737790
- Aircraft serial: 29751
- Aircraft time: 66,735 hours, 33,002 cycles
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Flap System
- Condition: Malfunctioned
- Stage of operation: AP
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021051634835

## Discrepancy

TE FLAP PROBLEM - ON APPROACH TE FLAPS STUCK AT F25 - WOULD NOT RETRACT OR EXTEND LUT OF F25 POSITION NOTE: ON GROUND FLAPS EXTEND AND RETRACT ALL POSITIONS NORMALLY. GROUNDED - YES. EMERGENCY DECLARED FOR LANDING - PERFORMED T/E FLAPS SYS TEST CONFIRMED NO EXISTING FAULTS ON FSEU, PERFORMED T/E LOAD RELIEF SYS BITE TEST B737-700 MM 27-51-00, NO DEFECTS FOUND. PERFORMED T/E FLAP ASYMMETRY SKEW SYS BITE REF MM 27-51-00; NO DEFECTS NOTED. ALL SYS TESTS PASS, OPS TEST T/E FLAP SYS NORMAL.

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