NTSB CAROL · Event
Event IAD78IA075
Aircraft involved
Historical record (pre-1982)
NTSB recorded this accident in the pre-1982 coded-field schema — structured fields rather than free-text narrative. Decoded codes use established NTSB single-letter taxonomies; cause factors remain verbatim pending the Form 6120.4 codebook lookup.
Aircraft
BOEING 737 · N9047U
Damage
None
Craft type
Airplane
Classification
C
Light condition
E
Weather
VMC
Phase of flight
D0
Weather at impact
Sky
CLEAR
Aircraft history
Serial number
000000019553
Total time
17,347 hrs
Pilot
Certificate
DA (DA)
Total hours
11,564
Probable cause (from PRE1982.MDB)
S PUMP SHAFT SEAL FAILED.F/O SECURED B SYS PUMPS.
Investigator remarks
LOST A&B HYD SYSTEMS.DIVERT TO IAD.NR 1 ENG A SY
Cause factors
- 75/A/BB A SYSTEMS HYDRAULIC PUMPS Cause — pilot/personnel action
- 75/A/BF A SYSTEMS SEALS Cause — pilot/personnel action
- 65/A/44 A COPILOT Cause — pilot/personnel action
- 64/A/20 A PILOT IN COMMAND FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC. Cause — pilot/personnel action
- 64/A/30 A PILOT IN COMMAND INADEQUATE SUPERVISION OF FLIGHT Cause — pilot/personnel action
- 88/A/05 A MISCELLANEOUS ACTS,CONDITIONS CREW COORDINATION-POOR Cause — pilot/personnel action
Decoded against the NTSB Form 6120.4 cause-factor codebook (ct_Pre1982 table). Each row shows the raw triplet, modifier (Cause / Factor / etc.), category, and specific code.
Source: NTSB pre-1982 historical archive. Docket
4 0010.
Source file
NTSB_1978_4_0010.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type. Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- NASA NTRS 2019 · Technical Memorandum (TM)
A preliminary study of a wake vortex encounter hazard boundary for a B737-100 airplane
A preliminary batch simulation study was conducted to define the wake decay required for a Boeing 737-100 airplane to safely encounter a Boeing 727 wake and land.
- NASA NTRS 2018 · Other
A Numerical Simulation Study to Develop an Acceptable Wake Encounter Boundary for a B737-100 Airplane
The National Aeronautics and Space Administration (NASA) is conducting research with the goal of enabling safe improvements in the capacity of the nation's air transportation system.
- NASA NTRS 2025 · Conference Paper
A Training Study to Improve Monitoring During A Go-Around
As part of an FAA program to improve go-around (GA) safety, we were asked to determine if we could improve the performance of the Pilot Monitoring (PM) during a GA maneuver.
- arXiv 2023 · arXiv preprint
Radar detection of wake vortex behind the aircraft: the detection range problem
In this study, we showcased the detection of the wake vortex produced by a medium aircraft at distances exceeding 10 km using an X-band pulse-Doppler radar.
- Embry-Riddle Scholarly Commons 2023 · Conference paper
Airline Pilot Risk Profiling by Using Unstable Approach Management Case
Risk and human decision-making cannot be separated from each other. Many of theories and studies have tried to analyze pilots’ decision-making processes, risk factors, and preference behavior in the a…
- Embry-Riddle Scholarly Commons 2023 · Journal article (IJAAA)
Historical Research and the case for a Fifth Component of SMS
Abstract Three tragic events from aviation history were examined using a Historical Research and Case Study Method. The events explored were the disasters of the Airship R101 (1930), the Space Shuttle…
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