Service difficulty report · Cadc · Boeing 727233

Difficulty date
March 7, 1995
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N257FE
Make and model
Boeing 727233
Aircraft serial
20939
Part
Cadc
Part number
HG480B13
Condition
Malfunctioned
Location
Left
Stage of operation
CL
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

AFTER TAKEOFF, THE CAPTAIN'S AIRSPEED AND ALT FLAGS CAME IN VIEW. PROBABLE CASE FAILURE. THE AIR DATA CMPTR CB WAS POPPED AND WOULD NOT RESET. REMOVED AND REPLACED AIR DATA COMPUTER PER MM 34-12-01. OPS CHECK GOOD, NEEDS PITOT STATIC CK. A/C DOWNGRADED TO NOT CAT 2, CKA AND CKB W. NOLTE 16114 PERFORM PITOT STATIC CHECK. IAW MM 34-11, OPS CK NORMAL NOTE INITIAL ROOT CAUSE WET E & E COMPARTMENT SR 13661.