Service difficulty report · Firewall · Cessna 525A

Difficulty date
September 17, 2018
Submitted
September 18, 2018
Operation
Air carrier
Aircraft
N417MH
Make and model
Cessna 525A
Aircraft serial
525A0054
Aircraft time
4,836 hours, 3,739 cycles
Part
Firewall
Part number
631220465
Condition
Cracked
Location
Rt Pylon
Part time
4,836 hours, 3,739 cycles
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

INSPECTION REQUIREMENTS OF DOCUMENT 18, TASK 54-51-00-210 REVEALED RT ENGINE PYLON FIREWALL BOX ASSEMBLY IS CRACKED ON THE FORWARD PART OF THE BOX FROM THE OUTBOARD EDGE TO THE INBOARD RADIUS OF THE FIREWALL BOX APPROX .750" IN LENGTH, P/N 6312204-65. SERVICE BULLETIN SB525A-54-01 HAS NOT BEEN INCORPORATED.

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