Service difficulty report · Cadc · Boeing 7472D7B

Difficulty date
February 4, 2007
Submitted
February 6, 2007
Operation
Air carrier
Aircraft
N528MC
Make and model
Boeing 7472D7B
Aircraft serial
22472
Aircraft time
79,072 hours, 15,742 cycles
Part
Cadc
Part number
19039253
Part serial
7202100
Condition
Sticking
Location
Altimeter
Stage of operation
CR
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

DURING CLIMB CAPT ALTIMETER NEEDLE WOULD STICK IN POSITION CAUSING PULL-UP TERRAIN WARNINGS, DON’T SINK WARNING AUDIBLES, ALTIMETER READ 37.0, ATC 36.8. PERFORMED STATIC SYSTEM LEAK CHECK NORMAL AS PER MM 34-11-00. FOUND NR 1 CADC DEFECTIVE. REMOVED AND REPLACED CADC PER MM 34-12-01. SYSTEM TEST NORMAL AND IAWS TEST NORMAL AS PER 34-11-00/34-46-01.

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