# SDR FDEA202508201515 - Type: Service difficulty report (as reported; unverified) - Difficulty date: August 20, 2025 - Submitted: August 21, 2025 - Operation: Air carrier - Aircraft: [N969FD](https://openairdocs.org/aircraft/N969FD), registered now - Make and model: Boeing 757-28A - Registry model: [Boeing 757-28A](https://openairdocs.org/model/boeing-757-28a) (OpenAirDocs) - Aircraft serial: 28164 - Aircraft time: 73,380 hours, 25,578 cycles - System (JASC): [2750 ยท Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750) - Part: Jackscrew - Condition: Out Of Adjust - Location: Nr 4 - Stage of operation: AP - How discovered: O - Nature of condition: J - Precautionary procedure: O - FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/) - Page: https://openairdocs.org/sdr/FDEA202508201515 ## Discrepancy AFTER SELECTING FLAPS 20, RECEIVED TE FLAP DISAGREE EICAS MESS. FLAPS INDICATED BETWEEN 15 & 20. RAN TE FLAP DISAGREE QRH, DIRECTED TE ALTN FLAPS SWITCH TO BE SELECTED. AFTER SWITCH SELECTED, A GRINDING NOISE UNDER FLAP HANDLE HEARD & TE DISAGREE LIGHT REMAINED ILLUMINATED. QRH DIRECTED TE ALTN FLAPS SWITCH DESELECTED & PROCEED TO TE FLAP ASYM CHKLST. RAN CHKLIST & LANDED WITH FLAPS AT CURRENT POSITION, EMERGENCY DECLARED. NO FSEU FAULTS FOR INBD FLT. NO EICAS MSG. PERFORMED TE FLAP LUBE. CKD TRANS & TQ LIMITER FLUID LEVELS. ALL OK. PERFORMED FLAP/SLAT NORM OPS CK. ALL MOVEMENT SMOOTH NO UNUSUAL NOISE OR BINDING. PERFORMED #4 & #5 FLAP TRASNS VIBRATION CK PER EA F-2750-T0384617. BOTH TRANSMISSIONS IN LIMITS. PERFORMED FLAP/SLAT ALT OPS CK. NOTED THAT #4 JACKSCREW OUT OF RIG 360 & AT FLAPS 30 IN ALT WOULD CONTACT STOP. ADJ #4 JACKSCREW. #3 & #4 JACKSCREWS WITHIN LIMITS. PERFORMED FLAP/SLAT NORM & ALT OPS CK S. FLAP/SLAT OPS OK. NO FAULTS OR EICAS MSG S. --- 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.