# SDR KCSA2025120379

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 3, 2025
- Submitted: January 12, 2026
- Operation: Air carrier
- Aircraft: [N780CK](https://openairdocs.org/aircraft/N780CK), registered now
- Make and model: Boeing 777-36NER
- Registry model: [Boeing 777-36NER](https://openairdocs.org/model/boeing-777-36ner) (OpenAirDocs)
- Aircraft serial: 32787
- Aircraft time: 70,787 hours, 13,364 cycles
- System (JASC): [2565 · Escape Slide](https://openairdocs.org/jasc/2565)
- Part: Slide
- Part number: 62771127
- Part serial: M9385
- Condition: Faulted
- Location: L1 Door
- 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/KCSA2025120379

## Discrepancy

L1 DOOR BINDS ON OPEN A/T: ADJUSTED L1 DOOR/ PASSENGER ENTRY DOOR IAW B777 AMM 52-11-00. OPS CHECK GOOD. NDN AT THIS TIME. AFTER TOW PROBELM REOCCURED. REF 100278342.  L1 DOOR EMERGENCY SLIDE IS UNPACKED; SLIDE DID NOT DEPLOY A/T: REMOVED L1 DOOR ESCAPE SLIDE IAW B777 AMM 25-66-01. DOOR DEFFERED AND PLACED ON DMI, REFERENCE W/O 100278343.  L1 DOOR EMERGENCY DOOR ASSIST CYLINDER HAS DISCHARGED. A/T: TRANSFERRED TO DMI 100278343 IAW B777 KA MEL B 25-10, 52-11-01-01 B, CAT C, DUE 12/13/25, “M” PROCEDURES C/W, PLACARDS INSTALLED.   REF DMI 100278343 EPAS BOTTLE DISCHARGED A/T: R&R EPAS BOTTLE PER B777 AMM 52-12-21. OPS CHECK GOOD. THIS CLEARS DMI 100278343. PLACARDS REMOVED.   REF DMI 100278343 L1 DOOR DEFFERRED A/T: INSTALLED SLIDE ASSY PER B777 AMM 25-66-01 FIT AND OPS CHECK GOOD PER 52-12-00.

---
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.