SDR I5EA2016040100001

Service difficulty report · Adc · Boeing 737401

Difficulty date: November 4, 2015
Submitted: March 30, 2016
Operation: Air carrier
Aircraft: N420US
Make and model: Boeing 737401
Aircraft serial: 23987
Aircraft time: 67,364 hours, 45,133 cycles
System (JASC): 3412 · Outside Air Temperature Indicator/Sensor
Part: Adc
Condition: Malfunctioned
Location: Nr 1
Stage of operation: TO
How discovered: O
Nature of condition: N
Precautionary procedure: C

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

What was found

AT 110 KNOTS CAPTAIN SIDE MACH KNOTS AND ALTIMETER INDICATORS FLAGGED. REFERENCED AND ADHERED TO QRH. BRAKE COOLING SCHEDULE FOR 107K LBS AT 110 KIAS. PERFORMED HIGH ENERGY STOP INSPECTION IAW AMM 05 51 07, PG 201 OBSERVED BREAKS COOLING SCHEDULE. INSPECTED PITOT STATIC PROBES NO FAULTS FOUND. PERFORMED SAT ON FACTORY OPS CHECK, TEST OF CAPTAINS ADC IAW 34-12-00 P503. AS PRECAUTIONARY R & R NR 1 ADC IAW AMM 34-12-00. OPS CK GOOD.