d. Aircraft in Transit.
(1) Surface/Air Shipment. Within 5 hours or 7 days of arrival.
(2) Ferry Status. Inspect at final destination. Those aircraft that have a DD 250 and are
located at U.S. Helicopter will be inspected prior to ferry to final destination.
e. Maintenance Trainers (Category A and B). N/A.
Components/Parts in Stock at Ail Levels (Depot and Others) including War Reserves.
g. Components/Parts in Work (Depot Level and Others). N/A.
2. Task/Inspection Suspense Date. Within 5 flight hours/7 days.
3. Reporting Compliance Suspense Date. No later than 16 Jan 98 in accordance with paragraph
14.a. of this TB. If compliance with SOF UH-1-98-01 has been reported, no further compliance reporting
4. Summary of Problem. Recent analysis of fatigue test data has shown that the 3600-hour retirement
life for the UH-1 Tail Rotor Slider is in error, and the correct life is 3000 hours. Furthermore, certain
sliders with CAGE code 0H0W5 (zero-hotel-zero-whiskey-five) have an undersized outside tube diameter.
The fatigue life on these special case sliders was previously established in Safety of Flight Message UH-1-
96-02 as 170 hours, Subsequent testing has shown that the life of these sliders is 250 hours.
a. Units have requested an alternate method to positively identify the 250-hour sliders manufactured
by Collins, when the identification of CAGE Code 0H0W5 (zero-hotel-zero-whiskey-five) is not possible. In
many cases, the CAGE code was ink stamped and subsequently covered with paint. The 250-hour
Collins sliders may be positively identified by serial number. Verification using the CAGE code is not
c. The Purpose of this TB is to:
(1) Reduce the current 3600-hour retirement life on the UH-1 Tail Rotor Slider to 3000 hours.
(2) Provide two methods (either CAGE code or serial number) to positively identify certain special
case sliders which have and 250-hour retirement life.
5. End Items to be Inspected. All UH-1 series aircraft.
6. Assembly Components to be Inspected. N/A.
Parts to be Inspected.
Tail Rotor Slider
8. Inspection Procedures.
a. Using the aircraft records, identify the serial number and time since new (TSN) of the Tail Rotor
Slider installed on the aircraft.