SDR CA040625003

Service difficulty report · Casting · Boeing 737201

Difficulty date: June 24, 2004
Submitted: July 22, 2004
Operation: General aviation
Make and model: Boeing 737201
Aircraft time: 60,289 hours, 55,926 cycles
Engine: Pwa JT8D9A
System (JASC): 5530 · Vertical Stabilizer
Part: Casting
Condition: Cracked
Location: Vertical 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) DURING MAINTENANCE CHECK A CRACK WAS FOUND ON THE SPIDER CASTING AT RUDDER STATION 23.27 BELOW THE STANDBY RUDDER PCU IN THE VERTICAL STABILIZER. THE CRACK IS 3 INCHES IB OF OUTER EXTREMITIES, 7 INCHES FORWARD OF THE LOWER RUDDER HINGE POINT APPROX 1.5 INCHES LONG AND .6250 INCHES FROM THE BASE. CRACK REPAIRED WITH AN EXTRUSION ANGLE IAW INSTRUCTIONS FROM MFG MESSAGE 1-31239593. TIMES, 61592.12 CYCLES 59677.