SDR ERAA076670

Service difficulty report · Structure · Bell 412

Difficulty date
October 9, 2001
Submitted
November 12, 2001
Operation
General aviation
Aircraft
N415EH
Make and model
Bell 412
Aircraft serial
33009
Aircraft time
15,044 hours
Part
Structure
Condition
Cracked
Location
Tailboom
Part time
6,871 hours, 775 cycles
Component
Tailboom
Component part number
212030100111
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

NO. 2 BULKHEAD CRACKED ABOVE ROOF PANEL. STINGER BULKHEAD UPPER SUPPORT ANGLE CRACKED. STIFFNER P/N 212-030-099-028 CRACKED. ROOF PANEL PN 205-032-815-127 HAS CORROSION & SEPERATED. VERTICAL FIN SUPPORT BULKHEADS PN 212-030-127-029 AND 021 CRACKED. L/H LOWER VERTICAL FIN SKIN CRACKED FWD BULKHEAD PN 212-030-143-009 SEPERATED. ACTION TAKEN: REPLACED STIFFNER PN 212-030-99-028. REPLACED ROOF PANEL & REPLACED FWD BULKHEAD PANEL. REPLACED BOTH VERTICAL FIN SUPPORT BULKHEADS. FABRICATED L/H LOWER VERTICAL FIN SKIN. REPAIRED NO 2 BULKHEAD ABOVE ROOF PANEL. FABRICATED STINGER BULKHEAD SUPPORT ANGLE. C/W AIRWORTHINESS DIRECTIVES OR SB'S AS PER ASB 412-90-49 PART II. THIS INFORMATION FOR FAA SDR.

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