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Fallen Heroes Details



In Memory Of
Norman Piepenbrink
Los Angeles Police Department, CA
End of watch: 1964-11-30
Aircraft: unknown helicopter
Sergeant Norman Piepenbrink, Serial No. 6090, was killed in a helicopter accident while working as an observer with Pilot Willard J. Lehman. The officers were conducting freeway traffic patrol in a Bell 47J helicopter. Piepenbrink, the Officer-in-Charge of the helicopter unit (Air Support Division), departed with Pilot Lehman from the Los Angeles County Sheriff's Department helipad at the Biscailuz Center. Immediately after departure, the aircrew overheard three loud, distinct thumps. The helicopter subsequently crashed, badly burning both Piepenbrink and Lehman.

An investigation revealed that the six rotor driving flange screws in the main rotor transmission had failed. This failure allowed the transmission rotor driving flange to become uncoupled from the transmission upper spider, causing a complete loss of engine torque to the main rotor. The six screws fractured from a static shear overload, resulting in a forced landing on unsuitable terrain. The aircraft was destroyed and Piepenbrink died three days later of his injuries. Officer Lehman survived.

Sergeant Piepenbrink had served with the agency for 18 years. He was survived by his wife and son.

Thoughts and Memories of Norman Piepenbrink

He was a dedicated officer. He received many commendations related to patrol, administration, Air Watch duties. He was a master helicopter mechanic as well as an accomplished pilot of fixed as well as rotorary wing aircraft. He was a decorated WWII veteran having served in the Pacific. He also was a 1st Lieutenant in the Army Air Reserve. He was also an OK father.
Brad Piepenbrink
2006-01-12

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