# SDR IPXA2026032854460

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 28, 2026
- Submitted: March 30, 2026
- Operation: Air carrier
- Aircraft: [N451UP](https://openairdocs.org/aircraft/N451UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 27739
- Aircraft time: 41,230 hours, 23,656 cycles
- System (JASC): [5247 · Auxiliary Power Unit (APU) Doors](https://openairdocs.org/jasc/5247)
- Part: Skin
- Part number: 148N666022
- Condition: Corroded
- 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/IPXA2026032854460

## Discrepancy

APU, RIGHT DOOR 316 EXTERNAL SKIN EDGE HAS EVIDENCE OF CORROSION AT APPROX BS 1963.8, VERIFIED EO NO DEFERRALS REQUIRED  EA 757-5240-01-B0698, REV P1, STEP 16.   ACCOMPLISHED REPAIR PER EO-96910-REQ1 AND VT-SAA EA 757-5240-01-B0698, REV IR

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