# SDR IPXA2026033134469

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 5, 2026
- Submitted: March 31, 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): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: 146N51591
- Condition: Corroded
- Location: Zone 200
- 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/IPXA2026033134469

## Discrepancy

MAJOR REPAIR,  MAIN DECK CARGO COMP. FLOOR BEAM LWR CHORD HAS CORROSION, APPROX AT BS 1420, BTW RBL 24.75 AND RBL 45.50, ID STICKER NUM. (085-075). ATA 53-10. REMOVED 5EA ANGLES FROM AFT CARGO COMP. FRAME UPPER CHORD APPROX AT BS 1360, BTW STGR 25R AND STGR 27R IAW B757-200 SRM 51-40-02. OK TO INSTALL REPAIR ANGLE, 3 FILLERS, 1EA ANGLE P/N STESAAEA 757-5360-01-B0701-14D, 1EA STRINGER CLIP P/N STESAAEA757-5360-01-B0701-14-1A, 1EA ZEE P/N STESAAEA757-5360-01-B0701-14B, 1EA STRINGER CLIP P/N STESAAEA757-5360-01-B0701-14-2A AT AFT CARGO COMP. FRAME UPPER CHORD APPROX AT BS 1360, BTW STGR 25R AND STGR 27 R IAW EA# 757-5360-01-B0701 REV P1 STEP 17.

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