SDR CA050823002

Service difficulty report · Altimeter · Dhav DHC8102

Difficulty date: August 22, 2005
Submitted: September 1, 2005
Operation: General aviation
Make and model: Dhav DHC8102
Aircraft time: 37,049 hours
Engine: Pwa PW120A
Propeller: Hamstd 14SF7
System (JASC): 3416 · Altimeter, Barometric/Encoder
Part: Altimeter
Condition: Separated
Location: Cockpit
Stage of operation: IN
How discovered: V
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 ANTENNA WAS REMOVED FOR INSPECTION AND CLEANING, IT CAME APART IN 2 PIECES. CORROSION WAS FOUND INTERNALLY BETWEEN BASE PLATE AND COPPER ANTENNA PLATE. SUSPECTED CAUSE FOR INTERMITTENT GPWS/RAD ALT SNAGS FOR THE PAST MONTH. ( REFERENCE A/C JOURNEY LOG PAGES : 435367,435362 AND 431947 ) NOTE: THIS PART IS TRACKED AS AN EXPANDABLE PART IN OUR SYSTEM, THUS WE ARE UNABLE TO DETERMINE THE EXACT TSN AND CYCLE ON UNIT.