Grumman AA5 N74420
23 July 2018 · Brazoria, Texas, United States · No injuries
Summary
On 23 July 2018 at about 17:15 local time, a Grumman AA5 registered N74420, operated by Rjm-AV8, LLC, was involved in an accident near Brazoria, Texas, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 17:15
- Classification
- Accident
- Location
- Brazoria, Texas, United States
- Coordinates
- 28.9847, -95.5392
- Aircraft
- Grumman AA5
- Registration
- N74420
- Category
- Airplane
- Year built
- 1975
- Engines
- 1
- Operator
- Rjm-AV8, LLC
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Instructional
- Phase of flight
- Not recorded
- Route
- Pearland → Unknown
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- CEN18LA292
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 0 | 0 | 0 | 2 |
Probable cause
The propeller blade separation due to a fatigue fracture.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
The student pilot and his flight instructor were conducting a local instructional flight when the airplane began to shake violently. A reduction of engine power revealed that the one of the propeller blades had separated about midspan. The flight instructor took control of the airplane and completed an uneventful forced landing in a nearby field. A postaccident examination revealed several fractured engine mounts. A laboratory examination of the propeller revealed that about one-half of one blade had fractured. Further examination of the flat portion of the fracture surface revealed a pattern of crack arrest lines and striations that were consistent with fatigue cracking. The pattern of crack arrest lines indicated that the fatigue cracking emanated from the trailing edge tip of the blade. Damage to the fracture surface at the trailing edge tip of the blade obscured the exact initiation point of the fatigue cracking. The propeller had accumulated about 4,499 hours since its last overhaul, and about 11 hours since it was last examined during an annual inspection.
Quoted verbatim from the NTSB record.
Other Grumman AA5 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 12 Oct 2018 | Grumman AA5 | Refugio, Texas, United States | - | Serious injuries | - |
| 23 Nov 2019 | Grumman AA5 | Jackpot, Nevada, United States | - | Fatal | 2 |
| 1 May 2020 | Grumman AA5 | Dnipropetrovsk, Ukraine | - | Fatal | 2 |
| 25 Oct 2020 | Grumman AA5 | Baxley, Georgia, United States | Baxley Aviation LLC | Minor injuries | - |
| 18 Mar 2016 | Grumman AA5 | Longview, Texas, United States | - | Serious injuries | - |
| 21 Jan 2020 | Grumman AA5 | Tallahassee, Florida, United States | - | Serious injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 12 Apr 2018 | Piper PA 24 | New Braunfels, Texas, United States | - | Minor injuries | - |
| 15 Jul 2018 | Kolb TWINSTAR | La Porte, Texas, United States | - | Fatal | 2 |
| 15 Apr 2018 | Wittman W10 | San Antonio, Texas, United States | - | Fatal | 1 |
| 16 Apr 2018 | Bordiuk CHALLENGER II | Friona, Texas, United States | - | Fatal | 2 |
| 5 Oct 2018 | Beechcraft 55 | San Antonio, Texas, United States | - | Minor injuries | - |
| 14 Jul 2018 | Steen SKYBOLT | Lexington, Texas, United States | - | No injuries | - |