Service difficulty report · Clamp · Doug DC862F

Difficulty date
June 4, 2007
Submitted
June 11, 2007
Operation
Air carrier
Aircraft
N799AL
Make and model
Doug DC862F
Aircraft serial
45922
Aircraft time
80,234 hours, 24,679 cycles
Engine
Pwa JT3D*
Engine time
47,407 hours, 14,496 cycles
Part
Clamp
Condition
Broken
Location
Anti Ice Sys
Part time
47,407 hours, 14,496 cycles
Stage of operation
CL
How discovered
O
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

DURING CLIMB FROM KTOL NR 1 ENGINE ANTI-ICE LIGHT ILLUMINATED, OIL PRESSURE LIGHT FLICKERED, EGT DROPED TO 270°C, LOW PRESSURE PNEUMATIC CONTROL CIRCUIT BREAKER POPPED, ENGINE GENERATOR FAIL LIGHT ILLUMINATED WHILE VOLTS AND FREQUENIES WERE NORMAL. CLIMB POWER WAS SET AT EPR 1.70, AND EGT 560°C. THE ENGINE POWER LEVER WAS RETARDED TO IDLE AND ALL INDICATIONS RETURNED TO NORMAL. THE CREW RETURNED TO KTOL AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE ENGINE AND FOUND THE CENTER INTERMEDIATE ANTI-ICING AIR MANIFOLD FORWARD CLAMP BOLT BROKEN. MAINTENANCE REPLACED THE BOLT AND REPAIRED WIRES IN THE PYLON IAW DACO DC8 MM 20-50-1. THE OPERATIONAL CHECKS WERE GOOD AND THE AIRCRAFT WAS RETURNED TO SERVICE.

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