# NTSB FTW84FA153: Boeing 727-200, N471BN, Lampasas, TX, March 4, 1984

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Field investigation · Final report
- Date: March 4, 1984, 15:33 local (21:33 UTC)
- Place: Lampasas, TX
- Location: 31.0640° N, 98.1828° W: Placed by OpenAirDocs: center of Lampasas, TX, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=31.0640&lon=-98.1828&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 3 minor, 44 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21106
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW84FA153
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21106/pdf
- Page: https://openairdocs.org/ntsb/FTW84FA153

## Sequence of events

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

- In flight encounter with weather, cruise
  - seat belt sign - delayed, pilot in command (contributing factor)
  - weather condition - turbulence,clear air (cause)
  - seat belt - not used, flight attendant

## Analysis

THE CAPTAIN RECEIVED A COMPANY BRIEFING PRIOR TO THE FLT. A CONVECTIVE SIGMET WAS IN EFFECT & TURBULENCE WAS FORCAST FOR THE AREA. DURING FLT, THE ACFT WAS MANUEVERED TO AVOID TURBULENCE. THE ACFT WAS CLEAR OF CLOUDS & IN A THIN HAZE LAYER WHEN THE CREW FELT A LIGHT BUMP. THE SEAT BELT SIGN WAS TURNED ON, THE AUTOPLT WAS DISENGAGED & THE THROTTLES WERE RETARDED. HOWEVER, WITHIN SECONDS, THE ACFT WAS SUBJECTED TO NEGATIVE 'G' LOADING. THE FLT ATTENDANTS WERE COMPLETING A BEVERAGE SERVICE & DID NOT HAVE TIME TO 'STRAP IN.'  ONE FLT ATTENDANT WAS SERIOUSLY INJURED & 3 OTHERS RECEIVED MINOR INJURIES.

## Aircraft

- Registration: N471BN (not matched to a registry record)
- Reported make and model: BOEING 727-200
- Category: Airplane
- Serial number: 21669
- Engines: P&W JT8D-9A 14500 lbs thrust turbo jet
- Damage: Minor damage
- Flight: Part 121
- Operator: Braniff Inc.
- Registered owner: Braniff Liquidation Trust
- Airworthiness certificate: Standard, Normal
- Last inspection: AAIP, February 29, 1984, 29 hours before
- Departed: SAT, SAN ANTONIO, TX
- Destination: DFW, DALLAS/FT WORTH, TX
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 53; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 22,180 total, 9,000 in this make and model, 14,000 as pilot in command, 16 in the last 90 days, 16 in the last 30 days, 7 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 130° at 10 knots
- Visibility: 7 statute miles
- Lowest ceiling: 3,800 ft broken
- Temperature: 77 °F, dew point 59 °F
- Altimeter: 29.00 inHg
- Observed at: SAT, 100 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 19840304062609A](https://openairdocs.org/incident/19840304062609A), Mar 4, 1984: Boeing 727227, Lampasas, TX, Minor damage. Aircraft encountered turbulence which injured 4 cabin attendants.

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.