CEN23LA404

NTSB accident investigation · Mcdonnell Douglas Helicopter 369E · Arcola, TX · September 7, 2023

Accident · No injuriesClass 4 · LimitedFinal report
Date
September 7, 2023, 12:00 local (17:00 UTC)
Place
Arcola, TX
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Emergency descent
Aircraft
N8372FMcdonnell Douglas Helicopter 369E
Defining event
Autorotation: Hard landing
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Central Region
Parties
FAA-FSDO
FAA report
20230907010599A
Case key
193027

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The instructor’s failure to re-apply engine power during a power recovery after a practice autorotation which resulted in a hard landing.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Use of equip/info: aircraft controlPersonnel issues › Task performance · Instructor/check pilotMcdonnell Douglas Helicopter 369E: 6 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: powerplant parametersAircraft › Aircraft oper/perf/capability · Incorrect use/operationMcdonnell Douglas Helicopter 369E: 1 caseAll aircraft: 81 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

During an evaluation flight with a company pilot, the instructor pilot reported that he failed to re-apply engine power prior to the completion of a practice autorotation with a power recovery. During the maneuver, the instructor’s attention was diverted from reapplying engine power by an airplane holding short of the runway near their planned touchdown point. The helicopter subsequently landed hard on the runway, which resulted in substantial damage to the tail boom. The instructor reported that there were no preaccident mechanical malfunctions of failures with the helicopter that would have precluded normal operation.

Aircraft

Registration
N8372F
Reported as
Mcdonnell Douglas Helicopter 369E
Category
Helicopter
Serial number
0488E
Built
1991
Airframe hours
18,500
Engine
Rolls Royce 250-C20B, 420 horsepower, turbo shaft
Damage
Substantial damage
Flight
Other work use · Public use
Operator
City Of Houston Police Department
Registered owner
City Of Houston Police Department
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · July 27, 2023
Departed
AXH · Arcola, TX
Airport
AXH · Houston Southwest, runway 27, 5,002 × 100 ft, asphalt
Equipment
ADS-B

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
56
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land
Instrument ratings
Helicopter, Airplane
Medical
Class 1, With waivers/limitations
Last flight review
January 27, 2023
Seat
Right
Restraint
3-point
Flight hours
4,115 total · 2,525 in this make and model · 4,068 as pilot in command · 87 in the last 90 days · 28 in the last 30 days · 3 in the last 24 hours
Role
Pilot
Age
53
Injuries
None
Certificate
Commercial
Medical
Class 1, With waivers/limitations
Last flight review
February 25, 2023
Seat
Left
Restraint
3-point
Flight hours
1,197 total · 990 in this make and model · 1,155 as pilot in command · 87 in the last 90 days · 38 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
95 °F, dew point 73 °F
Altimeter
29.97 inHg
Observed at
KAXH
METAR
KAXH 071715Z AUTO 00000KT 10SM CLR 35/23 A2997 RMK AO2 T03540227

Docket · 2

The files NTSB released with the investigation on November 9, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.1 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N8372F · 1

Matched to the same aircraft by N-number and date.