# NTSB ATL84LA266: Piper PA-28-140, N7136R, Iuka, MS, August 21, 1984

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: August 21, 1984, 18:15 local (23:15 UTC)
- Place: Iuka, MS
- Coordinates: 34.799377, -88.189941 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.7994&lon=-88.1899&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 6529
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL84LA266
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/6529/pdf
- Page: https://openairdocs.org/ntsb/ATL84LA266

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power(partial) - nonmechanical, takeoff - initial climb
  - fuel system,dump valve - blocked(partial) (cause)
  - maintenance,annual inspection - not performed, pilot in command (contributing factor)
- Forced landing, descent - emergency
- In flight collision with terrain/water, landing - flare/touchdown
  - terrain condition - rough/uneven
  - terrain condition - high vegetation

## Analysis

ON INITIAL CLIMB FROM TAKE-OFF, A PARTIAL POWER LOSS OCCURRED. CARB HEAT WAS SELECTED BUT PWR REMAINED AT A LEVEL TOO LOW TO SUSTAIN ALTITUDE AND A FORCED LANDING WAS EFFECTED IN ROUGH, WOODED TERRAIN. INVESTIGATION REVEALED NO DISCREPANCIES IN THE FUEL OR IGNITION SYSTEMS. THE ALTERNATE DUCT FOR INDUCTION AIR (CARB HEAT ON) WAS FOUND TO BE ALMOST TOTALLY BLOCKED BY A MUD DAUBER NEST. THE NORMAL INDUCTION AIR DUCT AND FILTER WERE IMPACT DAMAGED AND EVIDENCE OF BLOCKAGE COULD NOT BE CONCLUSIVELY DETERMINED. THE AIRCRAFT ANNUAL INSPECTION WAS 5 MONTHS OVERDUE.

## Aircraft

- Registration: [N7136R](https://openairdocs.org/deregistered/N7136R-1984-12-21), registration cancelled 1984-12-21, S/N 28-21839 (OpenAirDocs)
- Reported make and model: PIPER PA-28-140
- Registry model: [Piper PA-28-140](https://openairdocs.org/model/piper-pa-28-140) (registry code 7102802) (OpenAirDocs)
- Category: Airplane
- Serial number: 2821839
- Airframe hours: 2402
- Engines: LYCOMING O-320-E2A 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: William S. Hobson
- Airworthiness certificate: Standard, Normal; Standard, Utility
- Last inspection: Annual, March 31, 1983
- Airport: 15M, Iuka, runway 18, 3,200 × 60 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 56; private; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 1,180 total, 896 in this make and model, 1,136 as pilot in command, 4 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 120° at 8 knots
- Visibility: 4 statute miles
- Lowest ceiling: none
- Temperature: 88 °F, dew point 70 °F
- Altimeter: 30.00 inHg
- Observed at: MSL, 27 nm away

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19840821046409A](https://openairdocs.org/incident/19840821046409A), Aug 21, 1984: Piper PA28140, Iuka, MS, Substantial damage. Crash occurred during forced landing after engine failure during takeoff. Aircraft had not had annual inspection.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.