CEN18LA087

NTSB accident investigation · Robinson Helicopter R44 II · Loveland, CO · January 26, 2018

Accident · Minor injuriesLimited investigationFinal report
Date
January 26, 2018, 11:40 local (18:40 UTC)
Place
Loveland, CO
Injuries
1 minor, 2 uninjured
Phase of flight
Approach
Aircraft
N878BCRobinson Helicopter R44 IIN777YFBeech A36
Defining events
Approach: Midair collisionApproach: Midair collision
Weather
Visual (VMC) · Day
Status
Completed · report February 5, 2019
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA FSDO
Case key
96677

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 airplane pilot’s failure to see and avoid the helicopter while in the traffic pattern, which resulted in a midair collision between the two aircraft. Contributing to the accident was the airplane pilot’s misunderstanding of the helicopter pilot’s intentions and the airplane pilot’s expectation that the helicopter would be clear of the runway.

The airplane pilot’s failure to see and avoid the helicopter while in the traffic pattern, which resulted in a midair collision between the two aircraft. Contributing to the accident was the airplane pilot’s misunderstanding of the helicopter pilot’s intentions and the airplane pilot’s expectation that the helicopter would be clear of the runway.

Findings · 6

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.

N878BC · Robinson Helicopter R44 II

Attention/monitoring: monitoring other aircraftPersonnel issues › Psychological · Pilot of other aircraftRobinson Helicopter R44 II: 4 casesAll aircraft: 231 casesProbable cause
Info processing/decision: expectation/assumptionPersonnel issues › Action/decision · Pilot of other aircraftRobinson Helicopter R44 II: 2 casesAll aircraft: 51 casesProbable cause
Info processing/decision: understanding/comprehensionPersonnel issues › Action/decision · Pilot of other aircraftRobinson Helicopter R44 II: 3 casesAll aircraft: 70 casesProbable cause

N777YF · Beech A36

Info processing/decision: expectation/assumptionPersonnel issues › Action/decision · PilotBeech A36: 1 caseAll aircraft: 51 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.

N878BC · Robinson Helicopter R44 II

N777YF · Beech A36

Analysis

The accident occurred when a helicopter (N878BC) and an airplane (N777YF) collided midair while on approach to the airport. The helicopter pilot intended to fly a practice instrument approach to the runway, perform the missed approach procedure, and enter the published holding pattern. The airplane pilot intended to enter the traffic pattern, with appropriate spacing, for a full stop landing on the same runway. The airplane pilot had the helicopter in sight and was following the helicopter to the runway. While on final approach, the airplane pilot thought that the helicopter had entered a hover and asked the helicopter pilot about his intentions. The helicopter pilot indicated that he would be flying the missed approach procedure and then returning to the airport, but the airplane pilot incorrectly heard the helicopter pilot's response and believed that the helicopter was going to hover near the end of the runway and then proceed to the east. As a result, the airplane pilot expected the helicopter to be east of the airport, which was a common location for local helicopter training, when the airplane would be landing; however, the helicopter was on approach to the runway at that time. During the airplane's approach, the airplane pilot lost sight of the helicopter. The airplane continued to land and collided with the helicopter.

The accident occurred when a helicopter (N878BC) and an airplane (N777YF) collided midair while on approach to the airport. The helicopter pilot intended to fly a practice instrument approach to the runway, perform the missed approach procedure, and enter the published holding pattern. The airplane pilot intended to enter the traffic pattern, with appropriate spacing, for a full stop landing on the same runway. The airplane pilot had the helicopter in sight and was following the helicopter to the runway. While on final approach, the airplane pilot thought that the helicopter had entered a hover and asked the helicopter pilot about his intentions. The helicopter pilot indicated that he would be flying the missed approach procedure and then returning to the airport, but the airplane pilot incorrectly heard the helicopter pilot's response and believed that the helicopter was going to hover near the end of the runway and then proceed to the east. As a result, the airplane pilot expected the helicopter to be east of the airport, which was a common location for local helicopter training, when the airplane would be landing; however, the helicopter was on approach to the runway at that time. During the airplane's approach, the airplane pilot lost sight of the helicopter. The airplane continued to land and collided with the helicopter.

Factual narrative

On January 26, 2018, about 1140 mountain standard time, a Robinson R44 II helicopter, N878BC, and a Beech A36 airplane, N777YF, collided while on approach to the Fort Collins-Loveland Municipal Airport (KFNL), Loveland, Colorado. The pilot in the helicopter sustained minor injuries and the pilot and passenger in the airplane were not injured. The helicopter was owned and operated by a private individual and the airplane was owned and operated by Landsgaard Equipment Leasing LLC. Visual metrological conditions prevailed at the time of the accident. The helicopter departed Century Helicopters Heliport (0CO7), Fort Collins, Colorado, at 1100, and the airplane departed the Greely-Weld County Airport (KGXY), at 1110. Both intended to land at KFNL.According to the helicopter pilot, when he approached KFNL, he announced on the common traffic advisory frequency, his intention to fly the RNAV GPS approach for runway 33. There was a National Guard UH60 helicopter flying the ILS 33 procedure. The pilots of the Guard helicopter intended to fly the ILS 33 to a missed approach, and then depart the area. The helicopter pilot informed them of his intention to perform the RNAV GPS 33 approach, perform the published missed approach procedures, and then enter the published holding pattern. He then heard the airplane pilot ask the UH60 if they intended to fly all the way to the end of the runway before turning east. They replied that they would be close to the end during the missed approach. The helicopter pilot continued the approach and the airplane pilot called that he was on the downwind, had the helicopter in sight, and would extend the downwind to give spacing. The helicopter pilot replied that he would fly the missed approach procedure and then return to the airport. The helicopter pilot heard the airplane pilot reply, "good." While descending towards the airport, the airplane pilot asked the helicopter pilot if he was stopping there, which the helicopter pilot replied that was still descending, and then intended to fly the missed approach. The airplane pilot then stated that he was passing overheard. Shortly after, the helicopter and the airplane collided. According to the airplane pilot, he approached KFNL from the east, and announced his initial position of 6-7 miles out. He heard other traffic conducting missed approaches and reported 2 miles and 1 mile out to coordinate with the local traffic. He announced crossing the field for the left downwind for runway 33 and proceeded into the pattern. While on the downwind leg for 33 and abeam the numbers he lowered the landing gear in preparation for landing. About that time the other pilot announced a straight in approach for 33, the airplane pilot saw that the aircraft was at a higher altitude, but he could see the aircraft was coming in on the approach approximately 4-5 miles out. On the radio, the airplane pilot offered to extend the downwind leg to allow the aircraft to complete its missed approach. On thebase turn to final, the airplane pilot realized that the other aircraft was a helicopter and not an airplane. The helicopter continued its approach and when it was over the airport fence, the airplane turned onto final approach. About 4 miles south of the runway the airplane pilot said he could see the helicopter hovering south of the runway threshold, about ½ to ¾ mile from the end of the runway. He queried the helicopter pilot about his intentions, and he heard the helicopter pilot say that he was going to hover for a bit and then depart to the east. The airplane pilot replied "okay" and stated that he intended to fly over him for a full stop landing. The helicopter pilot responded "okay," so the airplane pilot proceeded to land on runway 33. During the approach, the airplane pilot lost sight of the helicopter. Expecting the helicopter to remain in a hover south of the runway, the airplane continued to land, descended, and collided with the helicopter. The helicopter descended, impacted terrain, and rolled on its right side resulting in substantial damage to the fuselage, and tailboom. After colliding with the helicopter, the airplane pilot saw the gear indicator show an unsafe right main landing gear. The airplane touched down on the left main landing gear and the pilot kept the right wing up for as long as possible. As the airplane slowed, the damaged right main touched down and the airplane departed the right side of the runway and came to rest in the adjacent grass. The responding Federal Aviation Administration Inspector auditioned audio from the UNICOM frequency. He did not hear the helicopter pilot transmit that he intended to hover. The airplane pilot stated that east of the runway 33/15 is where the local helicopter traffic usually performs their training, so he was expecting this helicopter to do the same.

On January 26, 2018, about 1140 mountain standard time, a Robinson R44 II helicopter, N878BC, and a Beech A36 airplane, N777YF, collided while on approach to the Fort Collins-Loveland Municipal Airport (KFNL), Loveland, Colorado. The pilot in the helicopter sustained minor injuries and the pilot and passenger in the airplane were not injured. The helicopter was owned and operated by a private individual and the airplane was owned and operated by Landsgaard Equipment Leasing LLC. Visual metrological conditions prevailed at the time of the accident. The helicopter departed Century Helicopters Heliport (0CO7), Fort Collins, Colorado, at 1100, and the airplane departed the Greely-Weld County Airport (KGXY), at 1110. Both intended to land at KFNL.According to the helicopter, when he approached KFNL, he announced on the common traffic advisory frequency, his intention to fly the RNAV GPS approach for runway 33. There was a National Guard UH60 helicopter flying the ILS 33 procedure. The pilots of the Guard helicopter intended to fly the ILS 33 to a missed approach, and then depart the area. The helicopter pilot informed them of his intention to perform the RNAV GPS 33 approach, perform the published missed approach procedures, and then enter the published holding pattern. He then heard the airplane ask the UH60 if they intended to fly all the way to the end of the runway before turning east. They replied that they would be close to the end during the missed approach. The helicopter pilot continued the approach and the airplane pilot called that he was on the downwind, had the helicopter in sight, and would extend the downwind to give spacing. The helicopter pilot replied that he would fly the missed approach procedure and then return to the airport. The helicopter pilot heard the airplane pilot reply, "good." While descending towards the airport, the airplane pilot asked the helicopter pilot if he was stopping there, which the helicopter pilot replied that was still descending, and then intended to fly the missed approach. The airplane pilot then stated that he was passing overheard. Shortly after, the helicopter and the airplane collided. According to the airplane pilot, he approached KFNL from the east, and announced his initial position of 6-7 miles out. He heard other traffic conducting missed approaches and reported 2 miles and 1 mile out to coordinate with the local traffic. He announced crossing the field for the left downwind for runway 33 and proceeded into the pattern. While on the downwind leg for 33 and abeam the numbers he lowered the landing gear in preparation for landing. About that time the other pilot announced a straight in approach for 33, the airplane pilot saw that the aircraft was at a higher altitude, but he could see the aircraft was coming in on the approach approximately 4-5 miles out. On the radio, the airplane pilot offered to extend the downwind leg to allow the aircraft to complete its missed approach. On the base turn tofinal, the airplane pilot realized that the other aircraft was a helicopter and not an airplane. The helicopter continued its approach and when it was over the airport fence, the airplane turned onto final approach. About 4 miles south of the runway the airplane pilot said he could see the helicopter hovering south of the runway threshold, about ½ to ¾ mile from the end of the runway He queried the helicopter pilot about his intentions, and he heard the helicopter say that he was going to hover for a bit and then depart to the east. The airplane pilot replied "okay" and stated that he intended to fly over him for a full stop landing. The helicopter pilot responded "okay," so the airplane pilot proceeded to land on runway 33. During the approach, the airplane pilot lost sight of the helicopter. Expecting the helicopter to remain in a hover south of the runway, the airplane continued to land, descended, and collided with the helicopter. The helicopter descended, impacted terrain, and rolled on its right side resulting in substantial damage to the fuselage, and tailboom. After colliding with the helicopter, the airplane pilot saw the gear indicator show an unsafe right main landing gear. The airplane touched down on the left main landing gear and the pilot kept the right wing up for as long as possible. As the airplane slowed, the damaged right main touched down and the airplane departed the right side of the runway and came to rest in the adjacent grass. The responding Federal Aviation Administration Inspector auditioned audio from the UNICOM frequency. He did not hear the helicopter pilot transmit that he intended to hover. The airplane pilot stated that east of the runway 33/15 is where the local helicopter traffic usually performs their training, so he was expecting this helicopter to do the same.

Aircraft · 2

Registration
N878BC
Reported as
Robinson Helicopter R44 II (II)
Category
Helicopter
Serial number
11530
Built
2006
Airframe hours
1,479.8
Engine
Lycoming IO-540-AE1A5, 245 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 29, 2017 · 49 hours before
Departed
0CO7 · Fort Collins, CO
Destination
FNL · Longmont, CO
Airport
FNL · Northern Colorado Rgnl, runway 33, 8,500 × 100 ft, asphalt
Equipment
Electronic flight bag or handheld device, Handheld GPS

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.

Registration
N777YF
Reported as
Beech A36 (UNDESIGNAT)
Category
Airplane
Serial number
E-2495
Built
1989
Airframe hours
2,540
Engine
Continental IO-550-B6F, 200 horsepower, reciprocating
Damage
Minor damage
Flight
Personal · Part 91
Operator
Landsgaard Equipment Leasing LLC
Registered owner
Landsgaard Equipment Leasing LLC
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 14, 2017 · 40 hours before
Departed
GXY · Greeley, CO
Destination
FNL · Longmont, CO
Airport
FNL · Northern Colorado Rgnl, runway 33, 8,500 × 100 ft, asphalt
Equipment
Auto-pilot, Stall warning system

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, aircraft N878BC
Age
51
Injuries
Serious
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 2, Without waivers/limitations
Last flight review
December 16, 2017
Seat
Right
Restraint
3-point
Flight hours
2,000 total · 800 in this make and model · 2,000 as pilot in command · 102 in the last 90 days · 13 in the last 30 days · 1 in the last 24 hours
Role
Pilot, aircraft N777YF
Age
55
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
December 28, 2017
Seat
Left
Flight hours
620 total · 320 in this make and model · 620 as pilot in command · 37 in the last 90 days · 20 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 18 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
39 °F, dew point 9 °F
Altimeter
30.01 inHg
Observed at
KFNL

Docket · 3

The files NTSB released with the investigation on April 5, 2018, on NTSB’s docket system: statements, records, photos and specialists’ reports. 6.4 MB in all.

FAA reports on this event · 2

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