# SDR DALA2024121611748

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 13, 2024
- Submitted: December 16, 2024
- Operation: Air carrier
- Aircraft: [N711ZX](https://openairdocs.org/aircraft/N711ZX), registered now
- Make and model: Boeing 757231
- Aircraft serial: 28481
- Aircraft time: 90,558 hours, 23,822 cycles
- System (JASC): [2560 · Emergency Equipment](https://openairdocs.org/jasc/2560)
- Part: Indicator
- Condition: Faulted
- Location: Zone 800
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2024121611748

## Discrepancy

SHIP 6814 4R KNUCKLE KNOCKER WONT EXTEND IN FLIGHT. CORRECTIVE ACTION: FOUND PLACARD ON TOP OF KNOCKER CATCHING ON PAINT DRIP IN CUTOUT . REMOVED PAINT BUILD UP AND OPS CK PER B757 AMM 52-11, CK GOOD. (0707783)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.