Thu, Dec 28, 2006
Manufacturer Adds 1000 To Number Of Affected Assemblies
Superior Air Parts has
added 1000 to the number of cylinder assemblies affected by the
recall first announced in a September service bulletin.
The company says cylinder barrels from assemblies identified by
Service Bulletin B06-01 D weren't properly hardened to
specification which could result in fatigue cracking of the
cylinder head.
Superior fears propagating cracks may lead to head and/or barrel
separation and loss of power in flight. SB B06-01 D requires the
removal of the affected assemblies manufactured between April and
November 2005.
According to the SB, affected cylinders must be replaced before
reaching 150 hours time in service (TIS). If an affected cylinder
has exceeded 150 hours TIS then it must be replaced within ten
hours.
The SB lists affected engines as follows:
Teledyne Continental Motors Engines:
- O-470-G, -K, -L, -M, -P, -R, -S, -U;
IO-470-C, -D, -E, -F,-G,-H, -L, -M, -N, -P, -R,
-S, -U, -V
- IO-520-A, -B, -BA, -C, -D, -E, -F, -J, -K, -L,
-M, -BB, -CB, -MB
- TSIO-520-AF, -B, -BB, -C, -CE, -D, -DB, -E,
-EB, -G, -H, -J, -JB, -K, -KB, -L, -LB, -M, -N, -NB, -P, -R, -T,
UB, -VB, -WB
- IO-550-A, -B, -C, -D, -E, -F, -L
Textron Lycoming Engines:
- O-320-A, -B, -C, -D, -E, -H;
IO-320-B, -D, -E; LIO-320-B;
AIO-320-A, -B, -C; AEIO-320-D,
-E
- O-360-A, -B, -C, -D, -F, -G, -J;
IO-360-B, -L, -M; LO-360-A;
AEIO-360-B, -H; HO-360-C;
HIO-360-B
- O-540-A, -B, -E, -F, -G, -H, -J;
IO-540-A, -C, -D, -N, -T, -V, -W;
AEIO-540-D
The SB lists part numbers for affected assemblies which owners
and mechanics may cross-check against suspect cylinders installed
on an aircraft. The photo below shows where to find the part number
on Millennium cylinders.
Under the terms of the Service Bulletin, Superior has agreed to
reimburse owners for labor as follows:
For the first cylinder change on either side:
- O/IO-470 IO-520/550 – 6 hours
- TSIO-520 – 8 hours
- O/IO-320/360 – 6 hours
- O/IO-540 – 6 hours
For the second or third cylinder change on same side add:
- O/IO-470 IO-520/550 – 4 hours
- TSIO-520 – 5 hours
- O/IO-320/360 – 3 hours
- O/IO-540 – 3 hours
Superior says costs for new cylinders will be handled according
to the company's warranty policy. The SB lists email addresses and
phone numbers to get your questions answered.
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