SDR CA111216002

Service difficulty report · Insulator · Beech 1900D

Difficulty date: December 15, 2011
Submitted: September 14, 2015
Operation: General aviation
Make and model: Beech 1900D
Aircraft time: 19,388 hours
Engine: Pwa PT6A67D
Propeller: Hartzl HCE4A3A
System (JASC): 2150 · Cabin Cooling System
Part: Insulator
Part number: 7654131
Condition: Cracked
Location: Acm
Stage of operation: IN
How discovered: 9
Nature of condition: O
Precautionary procedure: K

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

What was found

(CAN) WHEN THE HEAT EXCHANGER WAS REMOVED FOR CLEANING, IT WAS NOTICED THAT THE ACM, INSULATOR, HAD A LARGE CRACK. THIS CRACK IS BEHIND THE COOLING FAN, ALSO THE PACKING, PN 69494J152, IN THE CONTAINMENT HOUSING WAS DETERIORATED AND COMING OUT. THE ACM WAS REPLACED.

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