# SDR AALA201911129011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 11, 2019
- Submitted: November 26, 2019
- Operation: Air carrier
- Aircraft: [N955AN](https://openairdocs.org/aircraft/N955AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29540
- Aircraft time: 56,952 hours, 23,736 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Computer
- Part number: 10620388
- Part serial: C121825
- Condition: Malfunctioned
- Location: Fcc
- Stage of operation: DE
- How discovered: V
- Nature of condition: S
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201911129011

## Discrepancy

AIRCRAFT NOT GROUNDED: PILOT REPORTS DESCENDING OUT OF FL350 ACFT CAPTURED A GLIDE SLOPE SIGNAL AND STARTING CLIMBING. A/P WAS  DISCONNECTED. MAINTENANCE ACCOMPLISHED DFCS BITE IAW FIM 22-11-00. ACCOMPLISHED MMR BITE IAW FIM 34-31-00. ACCOMPLISHED LRRA BITE IAW FIM 34-33-00. ACCOMPLISHED PSEU BITE IAW FIM 32-09-00. FOUND FCC CHANEL A FAULT. ***SUPPLEMENTAL INFORMATION: MAINTENANCE REMOVED AND REPLACED FCC A IAW AMM 22-11-33. OPS CHECK NORMAL.*** (CLOSED)

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