# SDR IPXA2026102413332

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 18, 2026
- Submitted: October 28, 2026
- Operation: Air carrier
- Aircraft: [N402UP](https://openairdocs.org/aircraft/N402UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 23724
- Aircraft time: 39,932 hours, 27,205 cycles
- System (JASC): [4910 · APU Cowling/Containment](https://openairdocs.org/jasc/4910)
- Part: Skin Panel
- Part number: 148N3750
- Condition: Delaminated
- Location: Zone 300
- 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/IPXA2026102413332

## Discrepancy

LOWER AFT APU PANEL BETWEEN STA 1963 TO 1992 IS DELAMINATED. INSTALLED/BONDED ALL REPAIR DOUBLERS AND FILLERS ON INNER SIDE OF LOWER AFT APU PANEL BETWEEN STA 1963 TO 1992 AND CURED AT 310'F DEGS FOR 360 MINUTES REF 51-70-10-2R-0 REPAIR 4 PARA,4 AND SRM 51-70-10-2R-0 PARA, 17, 18 AND 20 TABLE 208.

---
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.