SDR I5EA2018121000002

Service difficulty report · Air Data Module · Boeing 737400

Difficulty date: December 8, 2018
Submitted: December 10, 2018
Operation: Air carrier
Aircraft: N803TJ
Make and model: Boeing 737400
Aircraft serial: 27156
Aircraft time: 54,377 hours, 28,923 cycles
System (JASC): 3416 · Altimeter, Barometric/Encoder
Part: Air Data Module
Part number: 4061100901
Part serial: 97032076
Condition: Smoke
Location: Zone 100
Stage of operation: CR
How discovered: O
Nature of condition: B
Precautionary procedure: B, A

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

What was found

DISCREPANCY: L/P 31547 ITEM 1 - F/O ALTIMETER AND AIRSPEED INDICATORS INOP. ITEM 2 - STRONG SMELL OF SMOKE IN CABIN AND COCKPIT. CORRECTIVE ACTION: L/P 31547 ITEM 1 - REPLACED #2 ADC, OPS CHECKS GOOD IAW AMM 34-12-11. ITEM 2 - PERFORMED CONDITIONAL INSP IAW AMM 05-51-56, SMOKE WAS FROM ADC FAILURE, NO OTHER FAULTS NOTED

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