SDR 97ZZZX4597

Service difficulty report · Stringer · Bolkms BK117B1

Difficulty date: October 1, 1997
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N5405G
Make and model: Bolkms BK117B1
Aircraft serial: 7179
System (JASC): 5313 · Fuselage Main, Longeron/Stringer
Part: Stringer
Condition: Cracked
Location: Bl 34r
Stage of operation: IN
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

INSTALLED ELECTRONIC OVERSPEED BRACKET FOR NR 2 ENGINE SLIGHTLY FORWARD OF STA 4963 AT AIRCRAFT TT, 4,853.7 HOURS AT AIRCRAFT TT, 5,399.3 HOURS DURING A 600-HOUR INSPECTION. CRACKS WERE FOUND ON STRINGERS AT BL 215R AND BL 34R AS WELL AS BRACKET ASSY.