# SDR AALA202010239016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 2020
- Submitted: October 26, 2020
- Operation: Air carrier
- Aircraft: [N812NN](https://openairdocs.org/aircraft/N812NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33520
- Aircraft time: 33,878 hours, 13,728 cycles
- System (JASC): [3444 · Ground Proximity System](https://openairdocs.org/jasc/3444)
- Part: Antenna
- Condition: Defective
- Location: Radio Altimeter
- Stage of operation: AP
- 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/AALA202010239016

## Discrepancy

AIRCRAFT WAS NOT GROUNDED.  SHORT FINAL F/O LOST FLIGHT DIRECTOR, UPON LAND, THROTTLES ADVANCED AND SPOILERS RETRACTED PSEU LIGHT THEN CAME ON AFTER ROLL OUT.  FAULTS CORRELATED TO LOGGED RADIO ALTIMETER FAULTS.  MAINTENANCE MESSAGES 32-62006 AND 27-62004.  REMOVED AND REPLACED NR 1 AND NR 2 RADIO ALTIMETER RECEIVE AND TRANSMIT ANTENNAS.

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