# SDR CALA2022030700580

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2022
- Submitted: March 7, 2022
- Operation: Air carrier
- Aircraft: [N38403](https://openairdocs.org/aircraft/N38403), registered now
- Make and model: Boeing 737900
- Aircraft serial: 30120
- Aircraft time: 56,942 hours, 23,534 cycles
- System (JASC): [5300 · Fuselage Structure (General)](https://openairdocs.org/jasc/5300)
- Part: Intercostal
- Part number: 147A56601
- Condition: Corroded
- Location: Sta 947.5
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2022030700580

## Discrepancy

CORROSION ON TRACK SUPPORT BETWEEN STA 947.5 967.5 OUTBOARD LEFT HAND SIDE IN A CABIN. MARKED DOT 211. AAR RFD NR 99920549 REMOVED AND REPLACED TRACK SUPPORT P/N 147A600-1 ON OUTBOARD L/H SIDE IN CABIN, WITH NEW TRACK SUPPORT P/N: 58-5300-3-0039, IAW B 737 SRM 51-40-02 STEP 7 (WORK ACCOMPLISHED BY V934437 AND V91483 7).

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