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SDR AALA202409130510

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Service difficulty report · Transmitter · Boeing 737823

FAA SDR system

Difficulty date
September 12, 2024
Submitted
September 13, 2024
Operation
Air carrier
Aircraft
N895NN
Make and model
Boeing 737823
Aircraft serial
31149
Aircraft time
35,629 hours, 15,323 cycles
System (JASC)
3400 · Navigation System
Part
Transmitter
Part number
S67200218
Condition
Warning Message
Location
Zone 100
Stage of operation
DE
How discovered
O
Nature of condition
J
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AIRCRAFT WAS GROUNDED: REPEAT ITEM, LANDING GEAR WARNING HORN SOUNDED ON DESCENT PASSING 11,000' WITH GEAR UP AND HANDLE OFF. WHEN GEAR DOWN SELECTED ON APPROACH, THE MAIN GEAR WERE SLOW TO DROP GIVING THE DISAGREE HORN AGAIN. TROUBLE SHOT PER WDM 34-33-11, FOUND CONNECTOR D3671 DAMAGED. REPLACED CONNECTOR (AALA202409132572), PER SWPM 20-51-15 AND OPERTIONAL CHECK RADIO ANTENNAS NUMBER 1 SYSTEM GOOD, PER AMM 34-33-00. ALSO REPLACED TRANSMITTER (AALA202409130510) AND RCVR ANTENNAS (AALA202409131342) FOR LOW RANGE RADIO ALTIMETER SYSTEM 1 AND 2, PER AMM 34-33-11.