circuit

Chapter 4 - The Aircraft That Wouldn’t Obey

The cockpit door stayed locked.

Rebecca heard shouting outside.

Then a thud.

Monica reached for the handle.

Mercer stopped her.

“Nobody opens that door.”

“But my crew is out there.”

“And nearly three hundred passengers are behind them.”

Another impact sounded.

Then silence.

Rebecca stared at the dead camera monitor.

“Can we restore video?”

Mercer tried.

Nothing.

“Circuit fault.”

“Or someone cut it.”

The interphone rang.

Mercer answered.

No voice.

Only breathing.

Then Martin Shaw spoke.

“Do not open the door.”

Rebecca leaned toward the panel.

“Where is Monica?”

“Safe.”

“What happened?”

“Someone came after me.”

“Who?”

“I don’t know his name.”

“You told us to run.”

“I recognized his face.”

“From where?”

Shaw breathed heavily.

“Helix internal security.”

Rebecca looked at Mercer.

Shaw continued.

“He was part of the containment team after Viper Three.”

Rebecca’s skin chilled.

“What containment team?”

“The one that made sure the real investigation never happened.”

Rebecca stopped breathing.

Mercer said, “Mr. Shaw, if you have information relevant to the safety of this aircraft, give it now.”

Shaw answered immediately.

“The flight-control failures are being triggered through the maintenance communications gateway.”

Mercer looked at the panel.

“That system can’t command flight surfaces.”

“Not directly.”

Rebecca understood.

“Corrupt sensors.”

“Yes.”

“Feed false data into control computers.”

“Yes.”

“Force degraded modes.”

“Yes.”

Mercer’s jaw tightened.

“Can you stop it?”

“I was trying.”

“What’s the device?”

“A diagnostic interface.”

“Why do you have it?”

“Because I knew this might happen.”

Rebecca’s anger exploded.

“You knew?”

“I knew someone was trying to recreate the Viper Three failure.”

“And you boarded a commercial flight with my daughter on it?”

“I boarded because you were on it.”

The words hit her harder than turbulence.

“Why?”

“Because you were the only pilot from that program who survived.”

Rebecca closed her eyes.

Evan had died.

A second pilot left the service after a nervous breakdown.

Rebecca had resigned after the investigation.

Only she had continued accusing the system.

“You used me.”

“I tried to warn you.”

“When?”

“Three months ago.”

Rebecca thought.

Unknown email.

Deleted automatically as spam.

A message mentioning Nevada.

She had never opened the attachment.

Mercer interrupted.

“Enough history. How do we stop the current failure?”

Shaw gave them a sequence.

Isolate maintenance uplink.

Disable certain network connections.

Force flight controls into the most basic available law.

Mercer checked each instruction against procedure.

Some actions were approved.

Others were not.

“We’re not improvising on your word.”

“You don’t have time.”

Rebecca asked, “Why forty-one minutes?”

Silence.

“Shaw.”

“The malicious routine changes behavior at a programmed geographic boundary.”

“What behavior?”

“I don’t know.”

“You expect me to believe that?”

“I wrote part of the original architecture six years ago, not this modification.”

Mercer looked at their position.

“How far to the boundary?”

Shaw answered.

“Twelve minutes.”

Rebecca looked at the weather and route.

“What boundary?”

“The thirty-west navigation crossing.”

That was approaching.

Mercer contacted operations.

Static overwhelmed the channel.

Then communications dropped.

SATCOM unavailable.

ACARS unavailable.

Radio remained, barely.

The aircraft rolled.

Ten degrees.

Twenty.

Mercer corrected minimally.

The response came late.

Rebecca called angles.

“Fifteen left. Twelve. Eight. Coming level.”

They stabilized.

Then pitch changed.

Nose down two degrees.

Then four.

Mercer pulled gently.

Nothing.

Rebecca’s voice sharpened.

“No response.”

“Wait.”

The aircraft continued descending.

“Five degrees down.”

Mercer held the input.

Then suddenly the nose came up.

Too fast.

“Release.”

He released.

The aircraft pitched upward.

Passengers screamed behind them.

“Ten up.”

“Thrust.”

Mercer adjusted.

Rebecca watched airspeed bleed.

“Speed dropping.”

The nose finally returned toward level.

Mercer exhaled.

“It’s stacking commands.”

“Exactly.”

Rebecca remembered Evan.

Becca, it’s not listening.

He had been fighting delayed commands until the system released them all at once.

She felt grief turn into anger.

“Shaw.”

“Yes?”

“How did Evan die?”

Silence.

“I need the truth.”

“Rebecca—”

“Now.”

Shaw spoke quietly.

“His aircraft was remotely induced into degraded control mode.”

Mercer glanced at her.

Rebecca’s face went blank.

“By whom?”

“I don’t know the operator.”

“You worked on the system.”

“I worked on legitimate testing.”

“You lied at the investigation.”

“Yes.”

“Why?”

“Because Helix threatened my family.”

Rebecca’s voice cracked.

“You let them blame Evan.”

“I know.”

“You let them say he overcorrected.”

“I know.”

“You looked at his wife and said the aircraft was safe.”

“I know.”

The cockpit became quiet.

Mercer did not interrupt.

Rebecca had imagined this moment hundreds of times.

Proof.

Confession.

Vindication.

She had believed it would feel like justice.

It felt empty.

Evan was still dead.

His son had still grown up without him.

“What were they testing?” Rebecca asked.

Shaw hesitated.

“Remote behavioral control.”

Mercer frowned.

“For an aircraft?”

“Resilience testing originally. Cybersecurity research. The idea was to prove whether hostile data could push a fly-by-wire system into unsafe responses.”

“And instead?”

“Someone realized the same mechanism could be weaponized.”

Rebecca stared at the instruments.

“This flight is a demonstration.”

“Yes.”

“For whom?”

“I don’t know.”

Mercer asked, “Why Rebecca?”

“Because whoever is behind it wants to prove that even the pilot who exposed the original flaw can’t beat it.”

Rebecca’s stomach twisted.

“This is personal?”

“Partly.”

The aircraft crossed another longitude.

Warnings multiplied.

Shaw’s voice accelerated.

“You need to isolate the maintenance gateway before thirty-west.”

Mercer checked the aircraft manual.

“There’s no cockpit procedure to fully isolate it in flight.”

“Circuit breakers in the electronics bay.”

Mercer’s expression hardened.

“That bay is not accessible to passengers.”

“It is accessible through the forward equipment hatch.”

Rebecca looked at him.

“Can crew reach it?”

“Yes, but not during unstable flight.”

Monica’s voice suddenly returned through another interphone.

“Captain.”

“Monica?”

“I’m okay.”

“What happened?”

“We restrained a passenger. Male, approximately fifty. He attacked Mr. Shaw.”

“Is he secure?”

“Yes. Four passengers helped.”

Rebecca asked, “Where’s Lily?”

“Still safe.”

Rebecca closed her eyes briefly.

Thank God.

Mercer gave Monica instructions.

Then Shaw spoke again.

“I can isolate the gateway manually.”

Mercer refused.

“No.”

“I know the architecture.”

“You’re also a suspect.”

“Then send someone with me.”

Rebecca knew who.

“No.”

Mercer turned.

“What?”

“I’m going.”

“Absolutely not.”

“I understand what he’s describing.”

“You are more useful here.”

“Until the system crosses that boundary and starts doing something neither of us understands.”

Mercer stared at her.

Rebecca continued.

“You can fly this airplane. You don’t need me to hold the controls. You need me because I recognize the failure pattern.”

“And?”

“If Shaw can isolate the gateway, the pattern may stop.”

Mercer hated it.

She could see that.

Finally he said, “Monica escorts you. Shaw does not touch anything without your verification.”

Rebecca removed the harness.

Before leaving, she looked at the instruments.

“Keep corrections small.”

“I know.”

“Don’t chase bank.”

“I know.”

“David.”

He looked at her.

“If it gets worse before I return, unload before you correct. Energy first.”

He nodded.

“Go.”

Rebecca stepped out of the cockpit.

The cabin was different now.

Passengers knew something serious was happening.

Nobody screamed.

Nobody rioted.

They watched.

Some prayed.

Some held hands.

Some stared at phones that no longer connected to anything.

Rebecca saw the restrained man near the galley.

Two large passengers held him while a flight attendant used restraint straps.

His expression was calm.

Too calm.

He looked at Rebecca.

“You should have stayed retired, Major.”

Rebecca stopped.

Monica pushed her forward.

“Keep moving.”

Martin Shaw stood nearby, one side of his face bruised.

He held the black diagnostic device.

Rebecca looked at him.

“You get one lie.”

“What?”

“One lie. If I catch you in one more, I stop trusting you completely.”

Shaw nodded.

“Fair.”

They moved toward the equipment access.

Then Lily called from behind them.

“Mommy!”

Rebecca turned.

Her daughter had slipped from the protected crew area.

Denise followed, apologizing.

“She heard your voice.”

Lily ran toward Rebecca.

Rebecca dropped to her knees and caught her.

For one dangerous second, the emergency disappeared.

There was only her child.

“You said you’d come back.”

“I did.”

“Are we falling?”

“No.”

“People are scared.”

“I know.”

“Are you scared?”

Rebecca looked into Lily’s eyes.

She could have lied.

Instead she said, “A little.”

Lily squeezed Teddy.

“Then I can be a little scared too.”

Rebecca kissed her forehead.

“That’s allowed.”

Monica gently took Lily’s hand.

Rebecca stood.

The airplane banked suddenly.

Everyone grabbed something.

A service cart crashed into a galley wall.

Rebecca looked toward the ceiling as if she could see the wings.

“How far to thirty-west?” she asked Shaw.

He checked his device.

“Three minutes.”

They opened the equipment hatch.

Warm electronic air rose from below.

A narrow ladder descended into darkness.

Shaw climbed down first.

Rebecca followed.

Rows of equipment boxes hummed beneath the cabin floor.

Shaw moved quickly.

“There.”

He pointed to a network interface rack.

Rebecca examined labels.

“Which unit?”

“Gateway three.”

She found it.

Shaw reached toward a connector.

Rebecca grabbed his wrist.

“What happens when you disconnect it?”

“We lose maintenance telemetry.”

“What else?”

“Possibly some noncritical data services.”

“Flight controls?”

“Should remain isolated.”

“Should?”

Shaw looked at her.

“No guarantee.”

Rebecca checked the time.

Thirty seconds.

Above them, the aircraft rolled again.

Shaw braced against the rack.

“Rebecca, now.”

She reached for the connector.

Then noticed something.

A tiny device attached behind the gateway.

Not standard.

Black casing.

No aircraft label.

A red light.

Blinking.

Exactly like Shaw’s diagnostic unit.

Rebecca pointed.

“What is that?”

Shaw’s face drained of color.

“I didn’t install that.”

The red light changed from blinking to solid.

Above them, every electrical hum stopped for half a second.

Then the airplane dropped.

And from somewhere inside the equipment bay, a mechanical voice began counting down.

“Ten.”

May you like

“Nine.”

“Eight.”

Related Stories

Other posts