SDR CALA2026060516849

Service difficulty report · Antenna · Boeing 737824

Difficulty date: June 3, 2026
Submitted: June 5, 2026
Operation: Air carrier
Aircraft: N76529
Make and model: Boeing 737824
Aircraft serial: 31652
Aircraft time: 48,463 hours, 17,606 cycles
System (JASC): 3457 · Global Positioning System
Part: Antenna
Condition: Faulted
Location: Gps
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: A

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

What was found

VNAV DISENGAGED ON TAKE OFF. LNAV SHOWS ON DISPLAY BUT DID NOT CAPTURE OR CYCLE. VNAV DISENGAGED ON TAKE OFF. LNAV SHOWS ON DISPLAY BUT DID NOT CAPTURE OR CYCLE MSG 22-11822 DISPLAYED REMOVED AND REINSTALLED SAME GPS 1 ANTENNA REF AMM 34-58-02. BOTH ANTENNA'S NOW INSTALLED WITH GEL GASKETS. BOTH GPS1 AND GPS2 ANTENNAS OPS CHECK OK REF PREVIOUS AMM. CLEARING BASED ON PREVIOUS UPDATE