# SDR CALA2021033000386

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 27, 2021
- Submitted: March 30, 2021
- Operation: Air carrier
- Aircraft: [N68821](https://openairdocs.org/aircraft/N68821), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 43535
- Aircraft time: 23,132 hours, 8,391 cycles
- System (JASC): [2751 · Trailing Flap Position Indicating System](https://openairdocs.org/jasc/2751)
- Part: Transmitter
- Part number: 90004532
- Condition: Defective
- Location: Rt Wing Te Flap
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: L
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2021033000386

## Discrepancy

WHEN FLAPS WERE SELECTED TO 15 THE  FLAPS STOPPED AT 10 DEGREES RAN QRH MOVED FLAPS TO 15 ALT S ITEM LOCKED UNLOCKING LOGPAGE FOR SIGNOFF. UNLOCKING LOG PAGE UNLOCKING LOGPAGE T/S I.A.W. FIM. 27-51-00-810-836, FOUND EXISTING FAULT MSG.# 27-51427(ALSO ON AT LEAST 10 LEGS).FOLLOWED TO FIM 27-51-00-810-819, PERFORMED T.E. FLAP LOAD RELIEF GROUND TEST I.A.W. M.M.27-51-00-810-803 FOUND FLAP CONTROL LEVER POSITION SENSOR T538 ABOVE THE UPPER LIMIT. ADJUSTED SENSOR I.A.W. M.M. 27-51-06-730-802, ALL WITHIN LIMITS & NO EXISTING FAULTS. 27-51-06-820-802. PEFORMED SENSOR SYS. TEST I.A.W. M.M.

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