Brantly B-2B N2273U
12 February 1984 · Mt. Pleasant, Pennsylvania, United States · No injuries
Summary
On 12 February 1984 at about 17:30 local time, a Brantly B-2B registered N2273U, operated by Edward Younkin, was involved in an accident near Mt. Pleasant, Pennsylvania, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. No probable cause statement is available for this record.
The record
- Date
- at 17:30
- Classification
- Accident
- Location
- Mt. Pleasant, Pennsylvania, United States
- Coordinates
- 40.1509, -79.5396
- Aircraft
- Brantly B-2B
- Registration
- N2273U
- Category
- Helicopter
- Engines
- 1
- Operator
- Edward Younkin
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Personal
- Phase of flight
- Not recorded
- Route
- Connellsville → Unknown
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- NYC84LA070
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 1 |
Probable cause
The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.
Nothing about the cause is stated here that is not in the source record.
Read the full NTSB narrative
THE PLT FLEW TO GREENSBURG, WHERE HE BROUGHT THE HELICOPTER TO A 2 FT HOVER AND DEPARTED WITH A MAX PERFORMANCE CLIMB. HE STATED THE HELICOPTER BEGAN TO EXHIBIT CONTROL IRREGULARITIES WHICH HE DESCRIBED AS 'A DUTCH ROLL WOBBLE TYPE OF SHUFFLE.' HE CONTINUED THE FLT & SAID THE 'SHUFFLE' SUBSIDED AS PWR WAS REDUCED DURING APCH TO MT PLEASANT. HOWEVER, HE EXPERIENCED DIRECTIONAL CONTROL PROBLEMS DURING THE APCH WHICH WERE PROPORTIONAL TO CHANGES IN COLLECTIVE & THROTTLE APPLICATIONS. INITIALLY, HE THOUGHT THE PROBLEM WAS ASSOCIATED WITH THE WIND. THE PLT INCREASED THROTTLE, COLLECTIVE, RTPEDAL & BEGAN A CLIMB. THEN AS A PRECAUTION, HE CUT THE THROTTLE TO STOP AN INCREASING VIBRATION & KEEP THE ENG FROM OVERREVVING. COLLECTIVE WAS REDUCED TO MAINTAIN ROTOR RPM, THEN WAS INCREASED ON DESCENT THRU 20 FT AGL, BUT THE ACFT LANDED HARD, COLLAPSING A SKID. ACCORDING TO WITNESSES, IT HAD INSUFFICIENT PWR & MADE A 360 DEG ROTATION BEFORE IMPACT.TWO MAIN ROTOR BLADES SEPARATED AND WERE FOUND WITHIN PROXIMITY OF THE HELICOPTER WITH IMPACT DAMAGE.
Quoted verbatim from the NTSB record.
Other Brantly B-2B accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 8 Sep 1984 | Brantly B-2B | Alvin, Texas, United States | - | No injuries | - |
| 21 Jun 1982 | Brantly B-2B | Ruskin, Florida, United States | Richard Knapp | No injuries | - |
| 23 May 1982 | Brantly B-2B | Fairbanks, Alaska, United States | Robert Kallenberg JR. | No injuries | - |
| 27 Apr 1986 | Brantly B-2B | Mt Clemens, Michigan, United States | - | Serious injuries | - |
| 17 Jun 1986 | Brantly B-2B | Griffith, Indiana, United States | - | No injuries | - |
| 18 Oct 1981 | Brantly B-2B | Broadus, Montana, United States | - | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 12 Apr 1984 | Bliss Corbin BABY ACE CM-1 | Emporium, Pennsylvania, United States | - | Minor injuries | - |
| 2 Jun 1984 | Hiller UH-12E | Sigel, Pennsylvania, United States | - | No injuries | - |
| 4 Jul 1984 | Bell 47G-5 | Penn Run, Pennsylvania, United States | GG AG Service, Inc. | No injuries | - |
| 8 Jul 1984 | Teratorn II | Brownsville, Pennsylvania, United States | - | Serious injuries | - |
| 16 Sep 1984 | Piper PA-28-140 | South Fork, Pennsylvania, United States | - | Serious injuries | - |
| 10 Nov 1984 | Taylorcraft BL-65 | Conyngham, Pennsylvania, United States | - | No injuries | - |