Service difficulty report · Spar · Dhav DHC2MK1

Difficulty date
June 9, 2003
Submitted
August 18, 2003
Operation
General aviation
Make and model
Dhav DHC2MK1
Aircraft time
13,289 hours
Engine
Pwa R985AN14B
Propeller
Hamstd 2D30
Part
Spar
Part number
C2TP57
Condition
Cracked
Location
Horizontal Stab
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) COMPLETED CF-91-42, SB 2/47 REV.C ON POST MOD 2/758 STABILIZER. NO CRACK WAS INITIALLY DETECTED. ALTHOUGH IT IS NOT REQUIRED BY THE AD, BRACKETS C2TP159A AND C2TP160A WERE REMOVED FOR DETAILED VISUAL INSPECTION OF THE SPAR. THE SPAR WAS FOUND CRACKED UNDER THE RT BRACKET (C2TP160A) APPROXIMATELY .2500 INCHES ABOVE THE TOP BRACKET BOLT HOLE. THE GUSSET PLATE C2TP171 WAS ALSO CRACKED DIRECTLY BEHIND THE SPAR CRACK. THESE CRACKS ARE LOCATED PARALLEL TO AND DIRECTLY IN FRONT OF THE RADIUS OF WASHER PLATE P/N C2TP177. BOTH CRACKS ARE APPROXIMATELY .2500 - .6258 INCHES LONG.