| Recurring |
unknown |
The articles do not mention any software failure incidents related to the United States Air Force or any other organization. Therefore, the information about the software failure incident happening again at one organization or multiple organizations is unknown. |
| Phase (Design/Operation) |
design |
Unknown |
| Boundary (Internal/External) |
within_system |
The software failure incident reported in the provided article [132263] is related to the propeller barrels of the C-130 Hercules cargo planes. This incident falls under the category of within_system failure as it was caused by a fault within the propeller barrels themselves. The issue was specifically related to the propeller barrels being faulty, with cracks that could lead to leaks, affecting the functionality of the planes. The failure originated from within the system components, leading to the grounding of more than 100 cargo planes for inspection and replacement of the affected propeller barrels. |
| Nature (Human/Non-human) |
non-human_actions |
(a) The software failure incident in this case is not related to non-human actions but rather to a mechanical issue with faulty propeller barrels that could crack and leak fluid, leading to the grounding of more than 100 C-130 Hercules cargo planes [132263].
(b) The failure in this incident is attributed to a mechanical issue with the propeller barrels that were found to have cracks, leading to the grounding of the planes. This issue was discovered during maintenance checks when a persistent leak was observed from a C-130 H propeller, prompting further inspections that revealed cracks in the barrel assembly. The decision to ground the planes and investigate the extent of the issue was made by the Air Force Mobility Command [132263]. |
| Dimension (Hardware/Software) |
hardware |
(a) The software failure incident occurring due to hardware:
The reported incident of the United States Air Force grounding more than 100 cargo planes was not directly related to a software failure incident originating from hardware issues. The grounding was due to concerns about faulty propeller barrels that could crack and leak fluid, which is a hardware issue related to the propeller assemblies on the C-130 Hercules cargo planes [132263].
(b) The software failure incident occurring due to software:
There was no mention of a software failure incident in the articles related to the grounding of the cargo planes. The primary reason for the grounding was the discovery of faulty propeller barrels that needed replacement, indicating a hardware issue rather than a software-related failure [132263]. |
| Objective (Malicious/Non-malicious) |
non-malicious |
The software failure incident reported in the provided article [132263] is related to a non-malicious factor, specifically a technical fault in the propeller barrels of the C-130 Hercules cargo planes. The issue was identified as faulty propeller barrels that could crack and leak fluid, leading to the grounding of more than 100 cargo planes. The failure was attributed to a manufacturing defect in the propeller barrels, which necessitated immediate inspections and replacement of the affected components. This incident does not indicate any malicious intent but rather highlights a technical flaw in the equipment.
Additionally, the article mentions a previous incident in February 2019 where 60 C-130Hs were grounded due to concerns about pre-1971 propeller blades cracking. This incident was also non-malicious and stemmed from a technical issue with the propeller blades, leading to a review of the propeller blade overhaul process to prevent similar failures in the future. |
| Intent (Poor/Accidental Decisions) |
unknown |
The articles do not mention any software failure incident related to poor decisions or accidental decisions. |
| Capability (Incompetence/Accidental) |
unknown |
The articles do not mention any software failure incident related to development incompetence or accidental factors. Therefore, the information regarding the software failure incident in relation to these factors is unknown. |
| Duration |
temporary |
The software failure incident related to the faulty propeller barrels affecting the C-130 Hercules cargo planes is a temporary failure. The incident led to the grounding of more than 100 C-130H planes due to concerns about cracks and leaks in the propeller barrels. The Air Force initiated immediate inspections, metallurgical reviews, and stress analyses to identify affected planes and ordered the replacement of the propellers. It is mentioned that newer C-130Js and C-130Hs with upgraded propeller assemblies are not affected by the defect. The timeline for replacing all affected propeller barrels has not been specified yet [132263]. |
| Behaviour |
unknown |
(a) crash: The software failure incident in this case does not involve a crash of the system itself. The issue reported is related to faulty propeller barrels on C-130 Hercules cargo planes, leading to their grounding [132263].
(b) omission: There is no indication in the articles that the software system omitted to perform its intended functions at any instance.
(c) timing: The software system is not mentioned to have performed its intended functions too late or too early.
(d) value: The software system is not reported to have performed its intended functions incorrectly.
(e) byzantine: The software system is not described as behaving erroneously with inconsistent responses and interactions.
(f) other: The software system is not described as exhibiting any other specific behavior not covered by the options provided. |