# SDR IPXA2026081486342

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 16, 2026
- Submitted: August 19, 2026
- Operation: Air carrier
- Aircraft: [N455UP](https://openairdocs.org/aircraft/N455UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25476
- Aircraft time: 46,102 hours, 22,631 cycles
- System (JASC): [5247 · Auxiliary Power Unit (APU) Doors](https://openairdocs.org/jasc/5247)
- Part: Channel
- Part number: 355N102U22
- Condition: Chafed
- Location: Apu 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/IPXA2026081486342

## Discrepancy

APU ACCESS DOOR 316AR FIRE LOOP SUPPORT RAIL HAS CHAFING DAMAGE AT AFT END AND DONT FORGET TO PROVIDE CLEARANCE AFTER REPAIR. RL022.  LOCATED AND DRILLED NEW CHANNEL AT APU ACCESS DOOR 316AR, IAW SRM 51-40-05-0G-0. OK TO INSTALL NEW CHANNEL. INSTALLED NEW APU ACCESS DOOR 316AR FIRE LOOP SUPPORT IAW  SRM 51-40-02-0G-0 REV 125 .

---
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.