CEN20CA178

NTSB accident investigation · General Atomics MQ-9B · San Angelo, TX · May 15, 2020

Accident · No injuriesClass 4 · Data collectionFinal report
Date
May 15, 2020, 10:26 local (15:26 UTC)
Place
San Angelo, TX
Damage
Destroyed
Phase of flight
Landing
Aircraft
CBP213General Atomics MQ-9B
Defining event
Landing-flare/touchdown: Loss of control in flight
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
Federal Aviation Administration; Lubbock FSDO
Case key
101277

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 pilot's failure to maintain an adequate landing flare that resulted in a porpoise and impact with terrain.

Findings · 1

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.

Performance/control parameters: pitch controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedAll aircraft: 526 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

The pilot of the unmanned aircraft system (UAS) attempted a touch-and-go landing but then performed a go-around due to an unstable approach. The pilot re-entered the UAS into the traffic pattern for a second touch-and-go landing attempt, during which it initially touched down nose first and induced a porpoise. During the third porpoise, the UAS contacted the runway in a nose-down attitude resulting in a hard landing and post-crash fire. The UAS was destroyed by the post-crash fire. There was no mechanical malfunction/failure of the UAS at the time of the accident.

Aircraft

Registration
CBP213
Reported as
General Atomics MQ-9B
Category
Airplane, unmanned
Serial number
Unknown
Built
2011
Engine
Honeywell TPE331-10YGD, turbo prop
Damage
Destroyed
Fire
On-Ground
Flight
Public use
Operator
Customs and Border Protection
Registered owner
Customs and Border Protection
Airworthiness certificate
Certificate of authorization or waiver (COA)
Last inspection
Continuous airworthiness · February 24, 2020
Departed
SJT` · San Angelo, TX
Destination
SJT` · San Angelo, TX
Airport
SJT` · San Angelo Regional/Mathis Fie, runway 18, 8,049 × 150 ft, asphalt

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
36
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
January 16, 2020
Flight hours
4,629 total
Role
Other flight crew
Injuries
None
Seat
None

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 10 knots
Visibility
9 statute miles
Lowest ceiling
2,500 ft broken
Temperature
81 °F, dew point 68 °F
Altimeter
29.87 inHg
Observed at
SJT

Docket · 2

The files NTSB released with the investigation on September 10, 2020, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.8 MB in all.