U N C L A S S I F I E D

ABBREVIATED AVIATION ACCIDENT REPORT (AAAR)
Source AAAR
1. Case Number 1a. Date of Accident 1b. Time 1c. Aircraft Serial Number 2a. Classification 2b. Category
20020829004 Aug 29 2002 1500 8900168 E
3. Type of Aircraft 4. Period Of Day 5. No Acft Involved 6. Nearest Installation
CH47D DAY 1 02347 - FT GREELY, AK
7. Accident Location a. On Post b. On Airfield d. ALASKA
8. Organization Involved in Accident
Unit UIC7 UIC6 UIC5 UIC4 UIC3 UIC2 Army Headquarters Element Station
WHT7B0 WHT7AA W0EBAA WNCRAA 02955
B CO 4/123AB ARTSPBD USARPAC FT WAINWRIGHT (AIN), AK
9. Organization Accountable for Accident
WHT7B0 WHT7AA W0EBAA WNCRAA 02955
B CO 4/123AB ARTSPBD USARPAC FT WAINWRIGHT (AIN), AK
10. Estimated Accident Cost
a. Total Loss b. Aircraft Damage c. Man Hrs d. Man Hrs Cost e. Other Mil Damage
No $0 0 $0 $0
f. Civilian Damage g. Injury h. Total This Aircraft i. Total Accident
$0 $0 $0 $0
11. General Data
a. Mission S/M b. Flight Plan c. Data Recorder
T - TRAINING SINGLE VFR
d. Night Vision e. Fire f. Fluid Spillage g. Field Training
NONE
12. Flight Data
a. Emergency Duration Phase of Operation
.9 G - CRUISE
AGL KIAS Weight Overgross
350 100 32500
b. Termination Duration Phase of Operation
AGL KIAS Weight Overgross
13. Type Event
85 - Drive Train
14. Accident Cause Factors Human Error Material Failure Environmental
NO DEFINITE NO
15. Summary
During flight right hand combining transmission debris screen latched and would not reset. PIC performed emergency procedures and landed with no further problems. Maintenance replaced combining transmission and aircraft was returned to service.
16. COMPONENT AND PART FAILURE/MALFUNCTION DATA
Part Information
a. Nomenclature c. Part Number d. NSN e. MFG Code f. Part Serial No
COMBINING XMSN 145D530020 1615014643974 77272 AB073
g. Cause Failure Functional Group
Material Maintenance Design Manufacture 04 - ROTOR AND TRANSMISSION 13 - COMBINING TRANSMISSION
DEFINITE ROLE - -
Type Failure Cause Failure
372 - METAL ON MAGNETIC PLUG - 374 - INTERNAL FAILURE -
17. ENVIRONMENTAL
a. General (1) IMC (2) VMC (3) Unknown
b. Environmental Conditions
1. Weather Conditions 2. Other Conditions
(a) Hail (a) Animals
(b) Sleet (b) Fowl
(c) Fog (c) Surface
(d) Drizzle (d) Noise
(e) Rain (e) Chemicals
(f) Snow (f) Radiation
(g) Lightning (g) Glare
(h) Thunderstorm (h) FOD
(i) Gusty Winds (i) Temperature
(j) Freezing Rain (j) Vibration
(k) Other (k) Dust
c. Aircraft Icing No Yes d. Turbulence No Yes
19. MOON ILLUMINATION DATA
a. Above Horizon b. Visible c. Degrees Above Horizon d. Percent Illumination e. Clock Position
No Yes No Yes
20. WIRE STRIKE DATA
a. Wire Strike b. WSPS Installed c. WSPS Engaged
No Yes No Yes No Yes
d. WSPS Cut Wire e. WSPS Functioned f. Wires Struck
No Yes No Yes Number wires 0 Dia.(inches)
21. PERSONNEL DATA
No Personnel
22. IMPACT/PROTECTIVE/ESCAPE/SURVIVAL/RESCUE DATA
a. Aircraft Space Compromised b. Escape/Survival Difficulties c. Protective/Restraint Equip Functioned
No Yes No Yes No Yes
24. FINDINGS AND RECOMMENDATIONS
Findings
Not Reported
Recommendations
Not Reported



U N C L A S S I F I E D