What was found
AT 3000 AGL, FLAPS 10, GEAR UP, INTERMITTENT GEAR HORN AND RETARD IN HUD. THE AIRCRAFT WAS GROUNDED. MAINTENANCE TROUBLESHOT AND REPLACED ALL 4 LOW RANGE RADIO ALTIMETER ANTENNAS IAW AMM 34-33-00-810-801. BITE TESTED GOOD.
- Difficulty date
- March 22, 2019
- Submitted
- March 26, 2019
- Operation
- Air carrier
- Aircraft
- N949AN
- Make and model
- Boeing 737823
- Aircraft serial
- 29537
- Aircraft time
- 54,854 hours, 22,578 cycles
- System (JASC)
- 3444 · Ground Proximity System
- Part
- Antenna
- Part number
- S67200218
- Condition
- Unreliable
- Location
- Radio Altimeter
- Stage of operation
- AP
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.