What was found
AIRCRAFT WAS NOT GROUNDED: GEAR WARNING HORN SOUNDED FOR APPROXIMATELY 60-SECONDS DURING THE DESCENT AT 240 KNOTS WITH GEAR AND FLAPS UP. REMOVE AND REPLACED NUMBER 1 RADIO ALTIMETER. PER AMM 34-33-21. OPERATIONAL CHECKS GOOD.
- Difficulty date
- October 4, 2025
- Submitted
- October 6, 2025
- Operation
- Air carrier
- Aircraft
- N318TD
- Make and model
- Boeing 7378
- Aircraft serial
- 68114
- Aircraft time
- 8,002 hours, 2,945 cycles
- System (JASC)
- 3444 · Ground Proximity System
- Part
- Transceiver
- Part number
- 8220334005
- Part serial
- 4T6CTY
- Condition
- False Indication
- Location
- Zone 100
- Part time
- 7,966 hours, 2,930 cycles
- Stage of operation
- DE
- 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.