# SDR ASMF200611001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 1, 2006
- Submitted: November 3, 2006
- Operation: Air carrier
- Aircraft: N908AM
- Make and model: Boeing 737*
- Aircraft serial: 30038
- Aircraft time: 5,985 hours, 3,495 cycles
- Engine: Cfmint CFM567B22
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Computer
- Part number: 8221604101
- Part serial: 1G4MN
- Condition: Failed
- Location: Cockpit
- Part time: 5,995 hours, 3,500 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASMF200611001

## Discrepancy

AIRCRAFT RETURNED TO PLATFORM DUE TO (MACH TRIM FAIL) AND (SPEED TRIM FAIL)  LIGHTS TURNED ON.  BREAKERS P18 AND P6 WERE CHECKED, BEING CORRECT. FIM 22-1 TASK 801 PROCEDURE AND FCCS TEST IN CDU WERE PERFORMED, DETECTING FAILURES CODES 22-11199 AND 22-11333. ADDITIONALLY, FIM 22-15, TASK 817, 22-16, TASK 834 AND 22-16, TASK 835 PROCEDURES WERE PERFORMED, DETECTING THAT FCC (A) FAILED. FCC WAS REPLACED IAW MM 22-11-33, TESTED CORRECT.

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