SDR T212003F00000

Service difficulty report · Structure · Bolkms BO105LSA3

Difficulty date: June 22, 2001
Submitted: March 13, 2003
Operation: Air carrier
Aircraft: N727WW
Make and model: Bolkms BO105LSA3
Aircraft serial: 2037
Engine: Allsn 250C*
System (JASC): 5530 · Vertical Stabilizer
Part: Structure
Part number: 10530401415
Condition: Cracked
Location: Vertical Fin
Part time: 1,453 hours
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

AT DAILY INSPECTION CHECK, CRACKS WERE FOUND, THROUGH INSPECTION PLATE, AT TOP OF VERTICAL FIN. CRACK ABOUT 1.5 INCH LONG ON NOSE RIB (PN105-3040120/ 1053041415), WHERE THE TAIL ROTOR GEAR BOX ATTACHED, ALSO RIVET MISSING. PROBABLE CAUSE, VIBRATION.