# SDR IPXA2025102037512

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 7, 2025
- Submitted: October 21, 2025
- Operation: Air carrier
- Aircraft: [N173UP](https://openairdocs.org/aircraft/N173UP), registered now
- Make and model: Airbus A300 F4-622R
- Registry model: [Airbus A300 F4-622R](https://openairdocs.org/model/airbus-a300-f4-622r) (OpenAirDocs)
- Aircraft serial: 0868
- Aircraft time: 20,435 hours, 12,399 cycles
- Engine: Pwa PW4158
- System (JASC): [7830 · Engine Thrust Reverser](https://openairdocs.org/jasc/7830)
- Part: Thrust Reverser
- Part number: 221D4012
- Condition: Cracked
- Location: Nr 1
- 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/IPXA2025102037512

## Discrepancy

ENGINE NR 1 OTBD THRUST REVERSER INTERNAL STRUCTURE, AFT UPPER CORNER HAD A CRACK. PERFORMED SURFACE HFEC INSPECTION IN THE CRACKED AREA TO THE NR 1 THRUST REVERSER INTERNAL STRUCTURE AFT UPPER CORNER. FOUND AND VERIFIED CRACK WITH AN EST. LENGTH OF 31.75MM (1.25"). ACCOMPLISHED INSPECTION IAW NTM 51-10-08 PART 6. INSP ONLY. T91269. CRACK WAS REPAIRED ON TRAVELER T25/1838644.

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