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Atlas / NTSB / GAA17CA023

NTSB CAROL · Event

Event GAA17CA023

2016-10-05 Palmer, Alaska, United States Airport · PAQ None 1 aircraft Status: Completed

Registry · N8895H

FAA Aircraft Registry record.

Make / Model

NORTH AMERICAN NAVION

Year of manufacture

1947 · 69 years old at event

TCDS

A-782 · SIERRA HOTEL AERO INC

Engine

CONT MOTOR E225 SERIES (225 hp)

Seats / Engines

4 seats · 1 engine

Last airworthiness date

19560112

ADS-B equipped

Yes — Mode-S AC4253

Registrant of record

HALLENBECK LOUIS J

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot's failure to extend the landing gear for landing.

Factual narrative

The pilot of a retractable landing gear equipped airplane reported that he landed with the landing gear retracted. He further reported that the airplane slid about 100 feet to a stop near the right edge of the runway. The fuselage sustained substantial damage. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The Federal Aviation Administration (FAA) Aviation Safety Inspector assigned to the accident, by coincidence, was already at the accident airport for an unrelated event. The inspector observed the landing gear retracted into the wheel wells and observed the landing gear handle in the up position. He further reported that the pilot was using a "noise cancelling headset." According to the inspector, the landing gear warning horn was not designed to sound through the headset/ intercom system, but would be audible in the cockpit. He reported that during the airplane recovery process the landing gear handle was moved to the down position and the landing gear extended and locked normally. The FAA Special Airworthiness Information Bulletin (SAIB), CE-16-08, Noise Cancelling Headsets, in part states: "In many cases, pilots are using the noise cancelling headsets as supplementary equipment during operations. When wearing these headsets, the pilot may be unaware of environmental sounds and audible warning annunciations in the cockpit that do not come through the intercom system." The FAA SAIB recommends that general aviation pilots and operators: • Become familiar with the safety information in FAA InFO 0700 • Elect to find other solutions to discern such alarms or sounds, or discontinue using these headsets if any audible alarms or environmental sounds cannot be discerned while wearing a noise cancelling headset. The pilot did not report whether or not he had heard the landing gear warning horn prior to landing. The pilot of a retractable landing gear equipped airplane reported that he landed with the landing gear retracted. He further reported that the airplane slid about 100 feet to a stop near the right edge of the runway. The fuselage sustained substantial damage. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The Federal Aviation Administration (FAA) Aviation Safety Inspector assigned to the accident, by coincidence, was already at the accident airport for an unrelated event. The inspector observed the landing gear retracted into the wheel wells and observed the landing gear handle in the up position. He further reported that the pilot was using a "noise cancelling headset." According to the inspector, the landing gear warning horn was not designed to sound through the headset/ intercom system, but would be audible in the cockpit. He reported that during the airplane recovery process the landing gear handle was moved to the down position and the landing gear extended and locked normally. The FAA Special Airworthiness Information Bulletin (SAIB), CE-16-08, Noise Cancelling Headsets, in part states: "In many cases, pilots are using the noise cancelling headsets as supplementary equipment during operations. When wearing these headsets, the pilot may be unaware of environmental sounds and audible warning annunciations in the cockpit that do not come through the intercom system." The FAA SAIB recommends that general aviation pilots and operators: • Become familiar with the safety information in FAA InFO 0700 • Elect to find other solutions to discern such alarms or sounds, or discontinue using these headsets if any audible alarms or environmental sounds cannot be discerned while wearing a noise cancelling headset. The pilot did not report whether or not he had heard the landing gear warning horn prior to landing. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).

  • C Personnel issues-Action/decision-Action-Forgotten action/omission-Pilot - C
  • C Aircraft-Aircraft systems-Landing gear system-Landing gear selector-Not used/operated - C
  • Environmental issues-Task environment-Physical workspace-Noise-Awareness of condition
  • Personnel issues-Task performance-Use of equip/info-Use of checklist-Pilot

Verbatim from NTSB's published report. Source file NTSB_2016_GAA17CA023.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.