TB 1--1520--237--20--230
8.Inspection Procedures.
WARNING
This NDI inspection requires either a qualified 68DN2 or a NAS 410 level II Ultrasonic NDI
Technician
NOTE
A copy of the detailed AVIM Level NDI Instructions is included in each NEC--8102 Inspection
Kit (No NSN). The NEC--8102 Inspection Kits are being fielded to the AVIMs and AVCRADS
by the Utility Helicopters Project Management Office (PM) and should be available within 30
days of message date. If the kit is not received by 6 April 2001, contact the logistics POC of
paragraph 16b. The NDI instructions will also be
available for download from the safety area
of the UH PMO website at: "http://www.uhpo.redstone.army.mil".
a. The 10 hour / 14 day PMS--1 inspection of the Spindle Lugs and Expanion Pins implemented by TB
1--1520--237--20--221 will continue until the initial NDI procedure IAW paragraph 8b(2) of this TB is accom-
plished.
b. The initial Spindle Lug NDI and Main Rotor Expandable Pin inspections will be conducted concur-
rently--
(1) During the initial NDI of each installed spindle, verify configuration conformance of the Main
Rotor Expandable Pins, P/N 70103--08107--102 / 103, as follows --
(a) As each pin is removed, visually inspect for non--conforming segments. With the excep-
tion of pins manufactured by SHUR--LOK (MFG code 97393), all wide segments must have a slot to allow
expansion of the segment when the handle is closed. SHUR--LOK pins have one wide segment in the
middle of the pin that is not slotted.
(b) Pins will be rejected if any slotted or unslotted segments are missing or broken, or if there
is a solid or partially slotted expandable segment. A link to supplemental visual information on allowable
pin/slot configurations is available on the 1999 (UH--60--99--ASAM--09) page of the Black Hawk web site:
"www.uhpo.redstone.army.mil". If you are unable to access the web page contact either the Technical
(c) If the Expandable Pin does not conform to the required configuration, contact the Techni-
cal POC IAW para16a before submitting a discrepant pin report or initiating the correction. After verifying
(d) If the Expandable Pin (P/N 70103--08107--102/103) conforms, the initial pin conformation
inspection is complete. Reuse the conforming pin.
(2) NDI all 4 Lugs of the spindle IAW the H--60 Main Rotor Hub Spindle Ultrasound NDI proce-
dure.
(a) Contact the NDI POC IAW paragraph 16c for technical questions regarding the use of
the inspection kit or application of the inspection procedures.
(b) If cracks are noted during the NDI inspection of the Main Rotor Spindle Lugs, correct IAW
c. Recurring NDI Inspection -- After completion of the initial inspection, schedule a 100 hour recurring
Ultrasound NDI of the Spindle Lugs IAW paragraph 8b(2) on the DA Form 2408--18. ULLS--A units will use
this message as authority to implement inspection number A180 for the recurring 100 hour Spindle Lug In-
spection.
d. After completing the initial NDI inspection, the following 10 hour / 14 day PMS1 inspections shall be
implemented --
3