WPR21LA183

NTSB accident investigation · MD Helicopters 369FF · Mesa, AZ · May 5, 2021

Accident · No injuriesClass 4 · LimitedFinal report
Date
May 5, 2021, 09:00 local (16:00 UTC)
Place
Mesa, AZ
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N6068SMD Helicopters 369FF
Defining event
Approach: Simulated/training event
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Western Pacific Region
Parties
MD Helicopters
FAA report
20210505002049A
Case key
103042

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

A tail rotor blade strike to an undetermined object while practicing approaches to unimproved terrain.

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.

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

The flight instructor reported that, he performed a preflight inspection with the pilot receiving instruction and did not observe any damage to the tail rotor blades before the accident flight. They subsequently departed to a nearby training area and completed several terrain flight approaches to a sandy wash area using standard approach profiles. After one hour of flight and about 15 approaches they returned to their departure airport. While performing a post-flight inspection, the flight instructor and the pilot both observed substantial damage to the tail rotor blades. According to the flight instructor, at no point during the flight did they feel any unusual vibrations with the helicopter, nor did they observe any debris within the landing area. The flight instructor reported no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation.

Aircraft

Registration
N6068S
Reported as
MD Helicopters 369FF
Category
Helicopter
Serial number
0268FF
Built
2017
Airframe hours
40.6
Engine
Rolls-Royce 250-C30, 650 hp, turbo shaft
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Md Helicopters Inc
Registered owner
Md Helicopters Inc
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · June 23, 2020
Destination
Same as departure
Flight plan
Company VFR
Airport
FFZ · Falcon Fld
Equipment
Electronic primary flight display, Electronic multifunction display, 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
Pilot
Age
61
Injuries
None
Certificates
Airline transport, Commercial
Instrument ratings
Helicopter
Medical
Class 2, With waivers/limitations
Last flight review
February 15, 2020
Seat
Left
Restraint
3-point
Flight hours
10,188 total · 790 in this make and model · 8,693 as pilot in command · 130 in the last 90 days · 31 in the last 30 days · 4 in the last 24 hours
Role
Pilot
Age
40
Injuries
None
Certificate
Foreign
Seat
Right
Restraint
3-point
Flight hours
900 total · 7 in the last 90 days · 7 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Temperature
81 °F, dew point 27 °F
Altimeter
29.98 inHg
Observed at
KFFZ
METAR
KFFZ 051554Z 00000KT 10SM CLR 27/M03 A2998 RMK AO2 SLP128 T02721028

Docket · 2

The files NTSB released with the investigation on August 3, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports.

FAA reports on this event · 1

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