Did the pilots of Flight 232 survive? Why did United Flight 232 crash?
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On the afternoon of July 19, 1989, United Airlines Flight 232 departed Denver for Chicago aboard a McDonnell Douglas DC 10. The flight seemed routine. Families relaxed. Flight attendants served drinks. The cockpit crew consisted of Captain Al Haynes, First Officer William Records, and Flight Engineer Dudley Dvorak.
Then, at 37,000 feet above Iowa, disaster struck.
The aircraft’s tail mounted engine suddenly exploded. Inside the engine, a titanium fan disk fractured because of a microscopic manufacturing defect that had escaped inspection years earlier. The explosion sent shrapnel through the rear of the aircraft with enormous force. It severed all three hydraulic systems.
That almost never happens.
Commercial aircraft are designed with layers of redundancy. One hydraulic failure should not doom a plane. Two failures are almost unimaginable. But Flight 232 lost all three. In a matter of seconds, the pilots realized the controls no longer worked. The yoke felt dead. The rudder pedals did nothing. The elevators and ailerons no longer responded.
The DC 10 had essentially become a giant unguided missile.
In aviation circles, total hydraulic failure was considered virtually unsurvivable. Simulator training rarely covered it because engineers believed pilots would never encounter it in real life. Without hydraulics, pilots cannot normally turn, climb, descend, or stabilize an aircraft.
The plane immediately began drifting right and entering a slow rolling motion. The nose oscillated up and down. Airspeed became difficult to manage. The crew fought confusion, alarms, and overwhelming stress.
Then an extraordinary stroke of luck appeared.
Among the passengers sat Dennis Fitch, an off duty United Airlines DC 10 instructor pilot. Fitch was highly experienced and specialized in training crews on emergencies. A flight attendant informed the cockpit that a DC 10 instructor was aboard. Captain Haynes immediately welcomed him forward.
Fitch entered a scene bordering on chaos.
The pilots were trying desperately to understand why nothing responded. Instruments flashed warnings. The aircraft kept banking right. Communication with air traffic control became urgent. Yet Haynes remained remarkably calm. Instead of panic, he focused on delegation and teamwork.
Fitch quickly grasped the situation. Since the control surfaces were dead, he suggested trying to steer with engine thrust alone.
This became the breakthrough.
By advancing power on one wing engine and reducing power on the other, the crew discovered they could influence the aircraft’s direction. More thrust on the left engine nudged the plane right. More thrust on the right engine nudged it left. Increasing both throttles together could raise the nose somewhat. Reducing power could lower it.
The response was crude and delayed. Nothing happened instantly. Sometimes corrections took many seconds. The aircraft also had a terrifying tendency to enter “phugoid” oscillations, huge waves of climbing and descending motion that grew increasingly violent.
Fitch essentially became the human flight control system.
He stood behind the throttles for much of the remaining flight, manually making constant tiny power adjustments to keep the aircraft from rolling over or diving. It required enormous concentration and physical effort. Every correction risked making things worse.
Meanwhile, Captain Haynes coordinated the overall strategy. He communicated with air traffic control and prepared for an emergency landing. The crew decided to attempt reaching Sioux Gateway Airport because it had a long runway and emergency services.
As Flight 232 approached Sioux City, the situation remained grim. The crew still had almost no real control. They could not properly align the aircraft. They could not extend flaps normally. Airspeed stayed dangerously high.
Yet against all odds, they reached the airport.
Air traffic controllers and emergency crews watched in disbelief as the crippled DC 10 appeared over the horizon. Witnesses later described the plane rocking violently from side to side.
The final approach became a desperate balancing act.
Fitch and the crew used throttle changes to try lining up with the runway. The aircraft was descending far too quickly. Its right wing dipped lower and lower. Seconds before touchdown, the plane rolled sharply to the right.
The right wing struck the runway first.
The DC 10 cartwheeled into a massive fireball. The fuselage broke apart across the airfield. Smoke and debris exploded into the sky. To many observers, survival looked impossible.
But hundreds did survive.
Out of 296 people aboard, 184 lived.
Investigators later concluded that the crew’s extraordinary improvisation saved many lives. Aviation experts have since called it one of the greatest examples of cockpit resource management ever seen.
The accident transformed aviation training. After Flight 232, airlines began teaching pilots how to handle extreme system failures using differential thrust. Manufacturers also reexamined hydraulic system vulnerabilities.
Captain Haynes later refused to accept individual praise. He insisted the survival rate resulted from teamwork. He often said no single person saved the plane alone.
Still, Dennis Fitch’s contribution became legendary.
Without hydraulics, he helped fly a crippled wide body jet using only engine power for nearly an hour. What he and the crew accomplished remains one of the most astonishing feats in aviation history.
Did the pilots of Flight 232 survive? Why did United Flight 232 crash?
