SDR 20000405SH024

Service difficulty report · Firewall · Doug 600N

Difficulty date: February 1, 2000
Submitted: April 5, 2000
Operation: General aviation
Aircraft: N611BP
Make and model: Doug 600N
Aircraft serial: RN041
System (JASC): 5412 · Nacelle/Pylon, Bulkhead/Firewall
Part: Firewall
Condition: Chafed
Location: Engine Bay
Stage of operation: IN
How discovered: O
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

AFTER REMOVING THE ENGINE FOR FOD, NOTICED THERE WERE TWO RUBBED INDENTATIONS TO THE UPPER LEFT PORTION OF THE FIREWALL. UPON FURTHER INVESTIGATION, NOTED THE BLEED VALVE BOLT HEADS WERE WORN CONSIDERABLY. THIS WAS THE ORIGINAL FACTORY INSTALLATION. (X)

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