# SDR ASAA2026071067651

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2026
- Submitted: July 29, 2026
- Operation: Air carrier
- Aircraft: [N278AK](https://openairdocs.org/aircraft/N278AK), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 44113
- Aircraft time: 31,064 hours, 9,957 cycles
- System (JASC): [5321 · Fuselage Floor Panel](https://openairdocs.org/jasc/5321)
- Part: Transition Panel
- Part number: 146A7502
- Condition: Corroded
- Location: Zone 100
- 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/ASAA2026071067651

## Discrepancy

AFT PIT L/H TRANSITION PANEL AT STA 727+15 TO 747+10 HAS CORROSION  GROUNDED - YES. REMOVED CORROSION FOUND TO BE OUT OF LIMITS, REPPAIRED TRANSITION PANEL FROM STA 727F+13 TO 747+13 IAW B737-900 SRM 53-00-53-2R-5 W= 2.25" O= 0.040 R= 0.058" L= 56" D= 0.002"

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