# SDR ASAA2015102313521

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 23, 2015
- Submitted: October 26, 2015
- Operation: Air carrier
- Aircraft: [N461AS](https://openairdocs.org/aircraft/N461AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36363
- Aircraft time: 6,275 hours, 2,031 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Failed
- Location: Right
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015102313521

## Discrepancy

RIGHT FMC FAILED DURING CRUISE FLIGHT.  FOLLOWED QRH WITH NO CHANGE.  CONTINUED FLIGHT WITH FMC SELECT SWITCH BOTH ON LT.  ACFT GROUNDED.  PERFORMED FIM 34-61, TASK 801. NO CURRENT FAULTS.  FOUND PREVIOUS FLT LEG FAULT FOR RT ADIRS.  PERFORMED FIM 34-61, TASK 824.  FOUND FAULTS IN FLT LEG NR 1, 34-21002, 34-21009, 34-21037.  PERFORMED FIM 34-21, TASK 803, 808, 806.  NO CURRENT FAULTS. TESTS OK.  PERFORMED LWMP TESTS REF MM 22-00-01, 34-21-01 AND FIM 22-11 TASK 802 BITE GRP. 33.  ALL TESTS OK. PRFORMED SMM 34-36-00 HGS SENSOR TESTS FOR ADR AND IR. TEST OK. A/C REMAINS CAT III A AUTOLAND AND HGS QUALIFIED. STATUS PLACARD SCREW CHECKED AND REFLECTS SAME.

---
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.