No fatalities

20 Nov 2020: PIPER PA32R 301T (N4187H) — Canon City, CO

Canon City, CO, United States

On 20 Nov 2020, a PIPER PA32R 301T (registration N4187H) was involved in an aviation accident near Canon City, CO. No fatalities were reported. Investigators recorded the probable cause as: The failure of the alternator drive belt, which resulted in insufficient electrical power to extend the landing gear and a subsequent gear-up landing. . This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

A Piper PA32R (N4187H) suffered a gear-up landing in Canon City, Colorado after an alternator drive belt failure caused electrical failure. The flight instructor and student pilot were not injured.

Event Details

On November 19, 2020, at approximately 1820 mountain standard time, a Piper PA32R airplane, registration N4187H, was substantially damaged when it was involved in an accident in Canon City, Colorado. The flight instructor and the pilot receiving instruction were not injured. The airplane was being operated as a Title 14 Code of Federal Regulations Part 91 personal flight.

According to the pilot receiving instruction, he had asked the flight instructor to conduct night takeoffs and landings so that he could meet night currency requirements. A before-takeoff engine run-up revealed no anomalies.

Shortly after takeoff, the battery warning light illuminated. The crew checked the circuit breakers, the alternator switch, and the master switch; all appeared normal or were in the "ON" position. The voltage continued to decrease, and they agreed to return to the airport.

Landing and Damage

While on final approach for landing, the instructor asked the pilot to lower the landing gear. The pilot advised that the landing gear was down; then all the lights flickered, and the instrument panel went dark. When the airplane touched down on the runway, the instructor noticed that the propeller had stopped and heard a grinding sound. He immediately realized that they had landed with the landing gear retracted (gear-up).

According to a Federal Aviation Administration inspector, the airplane sustained substantial damage to the fuselage.

Examination

Examination of the engine revealed that the alternator drive belt had failed, and it was found lying in the engine compartment. The alternator drive belt had been inspected and replaced on July 12, 2019, and most recently inspected during the annual inspection on May 6, 2020.

Contributing factors

generator drive sys — FailureInoperative