# DCTU

> Mobile tool for PT6 E-Series engine hardware maintenance and data collection. (iPhone/iPad app by Pratt & Whitney Canada Cie.)

- Source: https://appshunter.io/ios/app/dctu/id1590757019 (this page in markdown: same URL + `.md`)
- Developer: [Pratt & Whitney Canada Cie](https://appshunter.io/developer/1468490552)
- Category: Business
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 12.4 · 55 MB
- Languages: English
- Released: 2021-12-10
- Data updated: 2026-06-11
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/dctu/id1590757019/reviews.md

## What is DCTU?

The Pratt and Whitney Digital Engine Services (DES) team developed the Data Collection and Transmission Unit (DCTU) application to communicate with the DCTU hardware on the PT6 E-Series™ engine using wireless connection to perform maintenance actions such as: 


– View/Change electronic engine control (EEC) and DCTU parameters
– Retrieve Events, Exceedances & Faults (EEF)
– Retrieve EEC diagnostics data via DCTU
– Monitor health status on DCTU
– Perform live data diagnostics on DCTU and EEC
– Perform test transmission from DCTU to the ground station
– Change engine modules by barcode scanning (or) through Manual entry
– Change Line Replacement Units (LRUs) by barcode scanning (or) through Manual entry
– Supports to do a BOV(Bleed of Valve) closing point check along with the Bluetooth pressure transducer
– Allows user to generate locally stored file to enter data related to LRUs and Engine Modules while not connected to DCTU



The DCTU hardware provides the capability for the operators to collect data in real-time, record the data to non-volatile memory, make connections to ground support equipment, either wired or wirelessly, and offload data to the ground support equipment.

## Key features

- View/Change EEC and DCTU parameters
- Retrieve Events, Exceedances & Faults (EEF)
- Monitor DCTU health status
- Perform live data diagnostics
- Scan barcodes for module changes
- Generate offline LRU/Engine Module data files


## Frequently asked questions about DCTU

### What is DCTU used for?

DCTU is used to communicate with the DCTU hardware on PT6 E-Series engines for maintenance actions. This includes viewing/changing engine parameters, retrieving fault data, and monitoring system health.

### Can DCTU be used offline?

Yes, DCTU allows users to generate locally stored files for LRU and Engine Module data entry when not connected to the DCTU hardware.

### What devices support DCTU?

DCTU is supported on iPhone, iPad, and iPod devices, offering flexibility for on-site maintenance operations.

### How often is DCTU updated?

The latest version of DCTU is 8.12.1, and it was last updated on April 27, 2024, indicating regular maintenance and feature improvements.

### What is the age rating for DCTU?

DCTU has an age rating of 4+, making it suitable for a wide range of users in the professional aviation maintenance field.

### Does DCTU require a subscription?

No, DCTU is available for free and does not require a subscription to use its core maintenance and data collection functionalities.

### What kind of data can be retrieved with DCTU?

With DCTU, you can retrieve electronic engine control (EEC) and DCTU parameters, as well as Events, Exceedances & Faults (EEF) and EEC diagnostics data.

### How does DCTU handle engine module changes?

DCTU supports changing engine modules by either scanning a barcode or through manual entry, streamlining the replacement process.

## Version history (last 5 releases)

### 8.12.1 — 2024-04-27

1. Cortex Library Migrated.
2. DCTU Offline Mode.
3. BOV Calculator Added.
4. Updated App User Guide.
5. Updated EULA.
6. Improvements on the last version.
7. Bug Fixes.

### 8.11.16 — 2023-12-08

1.	Live Data is changed to EEC Real Time Display.
2.	Re-categorized the Dashboard Menus and Sub-menus.
3.	Added new categories to LRU Data.
4.	CIDScan (Cortex) License Updated.
5.	Updated App User Guide.
6.	Updated EULA.
7.	Improvements on the last version.
8.	Bug Fixes.

### 8.9.80 — 2022-09-28

For v8.9.80
1. Reminder message
2. Cortex Scanner
3. Clear ID Pop-up
4. Remove FADEC from Dashboard
5. ITT Trims Keyboard issue
6. Barcode Scanning with latest data plates (delta T44)

### 8.8.79 — 2022-04-07

•	Engine trim page keyboard upgrade
•	LRU 2D barcode scanning improvement
•	Bug fixes 
•	User manual update
•	Performance enhancements

### 8.7.77 — 2021-12-10

No release notes.

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## More apps by Pratt & Whitney Canada Cie

- [Know My PT6](https://appshunter.io/ios/app/know-my-pt6/id1469902010)

All apps by Pratt & Whitney Canada Cie: https://appshunter.io/developer/1468490552

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-11.*