SDR ASOA201101395

Service difficulty report · Firewall · Cndair CL6002C10

Difficulty date: July 11, 2011
Submitted: August 2, 2011
Operation: Air carrier
Aircraft: N722EV
Make and model: Cndair CL6002C10
Aircraft serial: 10127
Aircraft time: 19,652 hours, 13,530 cycles
System (JASC): 5412 · Nacelle/Pylon, Bulkhead/Firewall
Part: Firewall
Condition: Cracked
Location: Nr 1 Nacelle
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

NR 1 SYS LT PYLON FIREWALL 2ND FROM AFT UPPER ACCESS HOLE ELONGATED (NR 1 SYS PRESSURE LINE). APPEARS TO BE CRACKED AT FWD SIDE. COMPLIED WITH STEPS 1-2 OF REO 670-54-51-018. COMPLIED WITH NDT IAW STEP 3 OF REO 670-4-51-018 NDTM PART 1, 51-20-006. NO INDICATIONS NOTED. COMPLIED WITH STEPS 4 AND 5 OF REO 670-54-51-018. COMPLIED WITH STEPS 6-9 OF REO 670-54-51-018. REMOVED FIREWALL ASSY IAW SRM 51-42-06. INSTALLED FIREWALL ASSY IAW SRM 51-42-06-001-001-A01.