SDR CA010924005

Service difficulty report · Computer · Boeing 7372L9

Difficulty date: September 8, 2001
Submitted: September 25, 2001
Operation: Air carrier
Make and model: Boeing 7372L9
Aircraft time: 52,803 hours, 26,184 cycles
Engine: Pwa JT8D17A
System (JASC): 3170 · Automatic Data
Part: Computer
Part number: HG480B13
Condition: Failed
Location: Central Air Data
Stage of operation: CL
How discovered: O
Nature of condition: G
Precautionary procedure: A

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

What was found

(CAN) ON CLIMB OUT AUTO PILOT DISENGAGED, TCAS, GROUND PROXIMITY, MACH TRIM, ALTITUDE ALERT, TOTAL AIR TEMPERATURE AND ENGINE PRESSURE RATIO GAUGES FAILED. CENTRAL AIR DATA COMPUTER (CADC) RESET BUT DID NOT FIX PROBLEM AIRCRAFT RETURNED TO YYZ. CADC REPLACED AS PRE AIRCRAFT MAINTENANCE MANUAL 34-12-00 & 34-12-11.

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