Amendment 39-10291. Docket 94-ANE-44
Contributed by Rod Farlee
Cessna Single Engine Service Bulletin
SEB89-1 Revision 3
December 21, 1990
STABILATOR BALANCE WEIGHT ARM BRACKET INSPECTION REPLACEMENT
1968 thru 1978 Cardinal and Cardinal RG Series
177 17700001 thru 17702752
177RG 177RG0001 thru 177RG1366
R177RG F177RG0001 thru F177RG0177
Service experience indicates the possibility of crack(s) developing
in the aluminum stabilator balance weight arm brackets at
approximately 2000 hours. To assist in preventing loss of the
control surface balance weight, it is recommended the brackets
be inspected and replaced with new steel brackets as detailed in
this Service Bulletin.
Recommended, the aluminum 1732010-3 and -4 [parts manual figure 11
items 64 and 65] and 1732031-3 and -4 [11-60] brackets should be
inspected initially at 2000 hours bracket time in service or within
the next 200 hours of operation for airplanes which have accumulated
over 2000 hours on the brackets.
This inspection should be repeated every 200 hours or annually until
the aluminum brackets are replaced with 1732063-1 and -2 and
1732064-1 and -2 steel brackets.
NOTE: Compliance with Revision 1, and Revision 2 of this Service
Bulletin is required for all airplanes.
If SEB89-1 Revision 1 or SEB89-1 Revision 2 has previously been
accomplished, compliance with SEB89-1 Revision 3 is not required
if the correct part numbers were previously installed as shown
in Revision 3.
Orig. Issue: Feb. 3, 1989
Rev. 1 Issue: Oct. 12, 1990
Rev. 2 Issue: Oct. 26, 1990
FAA approval has been obtained on technical data in this publication
that affects airplane type design.
For Reims Aviation airplanes: DGAC approval has been obtained on
technical data in this publication that affects airplane type design.
Estimated 20.0 man-hours per airplane.
If required, the following parts are available from the Cessna Supply
Division thru an appropriate Cessna Service Station for the suggested
Eddy current inspection materials are obtained locally.
Part Number Description Qty Price
HL18PB6-4 Bolt 8 $ .91 (PS) ea. MQ25
HL18PB6-5 Bolt 8 $ .68 (PS) ea.
HL70-6 Collar 16 $ .36 (PS) ea. MQ50
MS20470AD5-7 Rivet 4 $14.80 (PS) lb.
MS21042L4 Nut 1 $ .21 (PS) ea. MQ100
MS21042L5 Nut 1 $ .84 (PS) ea. MQ25
1732063-1 Bracket-LH 1 $49.80 (S) ea.
1732063-2 Bracket-RH 1 $49.80 (S) ea.
1732064-1 Bracket-LH 1 $49.80 (S) ea.
1732064-2 Bracket-RH 1 $49.80 (S) ea.
ALL PRICES SUBJECT TO CHANGE WITHOUT NOTICE
Revised Stabilator Balance Weight Arm Brackets Inspection and
Replacement instructions are attached.