DEN07CA096

NTSB accident investigation · Cessna 172P · Manhattan, KS · May 25, 2007

Accident · No injuriesData collectionFinal report
Date
May 24, 2007, 22:00 local (May 25, 2007, 03:00 UTC)
Place
Manhattan, KS
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N65685Cessna 172P
Weather
Visual (VMC) · Night
Status
Completed · report July 25, 2007
Report
Approved by Office Director
FAA report
20070524009209A
Case key
65888

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

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Probable cause

The flight instructor's failure to maintain control of the airplane during the landing. A contributing factor was the inadvertent encounter with the military helicopter's rotor wash.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - in flightApproach - vfr pattern - final approach
Propeller/jet blast encounter - inadvertentPilot in command(cfi)Factor
Aircraft control - not maintainedPilot in command(cfi)Cause
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - runway

Analysis

Prior to departure from runway 03, the flight instructor noted a military UH-60 helicopter operating near the runway. The helicopter maneuvered away from runway 03, and the airplane departed. As the airplane reached the traffic pattern altitude (1,900 feet mean sea level), the instructor overheard a second military helicopter pilot report he was on base leg for runway 03. During the legs of the traffic pattern, the instructor reported his position and intentions on the common traffic advisory frequency (CTAF). The instructor reported on CTAF that he was turning for a one-half mile final to runway 03, and a military helicopter at the approach end of runway 03 appeared to proceed upwind. Based on his observations, the flight instructor continued on the visual approach to land. Approximately 200 feet above ground level (agl), the instructor noted that the helicopter did not depart, but was hovering 200 to 300 feet agl approximately 2/3 down the runway. Concerned about the risk of a mid-air collision during a go-around, the instructor decided to continued the landing. As the airplane crossed the runway 03 threshold, the instructor realized the helicopter was hovering at 200 feet agl near the 1,000 foot runway markers. The instructor reported, "As the main wheels touched down the aircraft was caught in a gust of wind from the outflow of the helicopter's rotor wash. The aircraft ballooned up approximately two feet above the runway and immediately caught down flow from the rotor wash which forced the aircraft to the ground. The main wheels struck the runway, followed by the nose wheel which collapsed on impact. The aircraft skidded approximately 25 feet before coming to rest."

Factual narrative

According to the Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1), the flight instructor reported that he and student were going to practice night landings at Manhattan Regional Airport, Manhattan, Kansas. Prior to departure from runway 03, the instructor noted a military UH-60 helicopter operating near the runway. The helicopter maneuvered away from runway 03, and the airplane departed. As the airplane reached the traffic pattern altitude (1,900 feet mean sea level), the instructor overheard a second military helicopter pilot report he was on base leg for runway 03. During the legs of the traffic pattern, the instructor reported his position and intentions on the common traffic advisory frequency (CTAF). The instructor reported on CTAF that he was turning for a one-half mile final to runway 03, and a military helicopter at the approach end of runway 03 appeared to proceed upwind. Based on his observations, the flight instructor continued on the visual approach to land. Approximately 200 feet above ground level (agl), the instructor noted that the helicopter did not depart, but was hovering 200 to 300 feet agl approximately 2/3 down the runway. Concerned about the risk of a mid-air collision during a go-around, the instructor decided to continued the landing. As the airplane crossed the runway 03 threshold, the instructor realized the helicopter was hovering at 200 feet agl near the 1,000 foot runway markers. The instructor reported, "As the main wheels touched down the aircraft was caught in a gust of wind from the outflow of the helicopter's rotor wash. The aircraft ballooned up approximately two feet above the runway and immediately caught down flow from the rotor wash which forced the aircraft to the ground. The main wheels struck the runway, followed by the nose wheel which collapsed on impact. The aircraft skidded approximately 25 feet before coming to rest." Examination of the airplane revealed that nose landing gear was separated, the firewall and aft fuselage were buckled. The flight instructor and student pilot were not injured.

Aircraft

Registration
N65685
Reported as
Cessna 172P
Category
Airplane
Serial number
17275818
Engine
Lycoming O-320-D2J, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Kansas Air Center, Inc.
Airworthiness certificate
Standard, Normal
Departed
MHK · Manhattan, KS
Destination
MHK
Airport
MHK · Manhattan Muni, runway 3

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
24
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1
Flight hours
1,585 total · 90 in this make and model · 190 in the last 90 days · 65 in the last 30 days
Role
Student pilot

Weather

Conditions
Visual (VMC) · Night

FAA reports on this event · 1

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