# SDR FDEA202602050136

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 5, 2026
- Submitted: February 6, 2026
- Operation: Air carrier
- Aircraft: [N748FD](https://openairdocs.org/aircraft/N748FD), registered now
- Make and model: Airbus A300 B4-622R
- Registry model: [Airbus A300 B4-622R](https://openairdocs.org/model/airbus-a300-b4-622r) (OpenAirDocs)
- Aircraft serial: 633
- Aircraft time: 47,600 hours, 20,413 cycles
- Engine: Pwa PW4158
- Engine time: 37,980 hours, 4,404 cycles
- System (JASC): [7830 · Engine Thrust Reverser](https://openairdocs.org/jasc/7830)
- Part: Gearbox
- Part number: 32725641
- Part serial: 682
- Condition: Failed
- Location: Zone 400
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202602050136

## Discrepancy

ON DEPARTURE, NR 1 ENG REV UNLOCK. RAN QRH, DECLARED  EMERGENCY AND RETURNED TO ORF WITHOUT INCIDENT.  AMM 78-31-35-04,  AMM 78-32-11-05 IAW MOCC REQ (MTSI#78-31/9965) REPLACE ENG 1  SPLITTER GEARBOX.  R & R ENG 1 SPLITTER GEARBOX.  OPS CK OK.   R & R SPLITTER AND PRSOV.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.